He was SO skinny during that time, so we knew something had to have been going on...

Zayn Malik has been open about struggling with anxiety, and now the singer is getting candid in his new book Zayn about suffering from an eating disorder during his One Direction days.

"When I look back at images of myself from around November 2014, before the final tour, I can see how ill I was. Something I’ve never talked about in public before, but which I have come to terms with since leaving the band, is that I was suffering from an eating disorder," he wrote.

The "Pillow Talk" crooner goes on to explain his issue didn't center around his looks or his weight, and he actually didn't see it as a problem at first.

"It wasn’t as though I had any concerns about my weight or anything like that, I’d just go for days — sometimes two or three days straight — without eating anything at all. It got quite serious, although at the time I didn’t recognize it for what it was," he revealed.

He ultimately realized that he was desperately looking for a way to handle his chaotic lifestyle.

"I didn’t feel like I had control over anything else in my life, but food was something I could control, so I did. I had lost so much weight I had become ill. The workload and the pace of life on the road put together with the pressures and strains of everything going on within the band had badly affected my eating habits," he confessed.

He's not ashamed to discuss mental health, something he made clear when he canceled shows this past June and September.

"Dear fans, I have been working over the last three months to overcome my extreme anxiety around major live solo performances. I feel I am making progress but I have today acknowledged that I do not feel sufficiently confident to move forward with the planned show in Dubai in October … I am truly sorry to disappoint you. I hope to see you all soon. Thank you to all my fans who support me globally. With love and respect always, Zayn," he said in a statement last month.

We applaud him for being so honest.

A photo posted by Beyoncé (@beyonce) on Oct 31, 2016 at 9:50pm PDT

Halloween weekend was over yesterday but that doesn't mean the spooktacular festivities were stopping just because it was a Monday night! Beyonce, Jay, Heidi, Lena and more got in the spirit of things. Check it out!

First up we have Beyonce, who had previously dressed with her mom and daughter as Salt-N-Pepa, and Jay Z as Black Barbie and Black Ken -- they even got Blue Ivy into the fun! Queen Bey showed off that rockin' body of hers in a black and white bodysuit, sexy heels and a high ponytail. The couple even stepped inside "Black Barbie" and "Black Ken" boxes! Hilarious!

Meanwhile Heidi Klum, who is known for her love of Halloween, definitely disappointed with her pretty lame costume. Instead of going over-the-top like usual, she just dressed sexy and had five women made up to look like clones of her. Even prosthetics couldn't save this choice!

The 43-year-old and her clones made a big entrance at Heidi's annual Halloween bash in NYC when she and the gals were posed perfectly in matching Herve Leger by Max Azria bodysuits and over-the-knee boots inside a giant wooden box with “Made in Germany” written on the outside.

We gotta say we were hoping for something amazing from the Queen of Halloween -- seeing her in a Herve Leger bodysuit and that's all, just doesn't do it for us!

@heidiklum clones herself for Halloween! #heidiklum #heidihalloween

A video posted by Alicia like Patricia (@aliciacpowell) on Oct 31, 2016 at 9:29pm PDT

Are you seeing double, triple, quadruple, quintuple, sextuple?! #Ready #HeidiHalloween courtesy of @bookingcom

A photo posted by Heidi Klum (@heidiklum) on Oct 31, 2016 at 8:59pm PDT

Instead of a sexy costume like Heidi and Bey, Taylor Swift opted for an outfit that should slay all the nerds. Tay dressed as Deadpool and threw an intimate bash for her squad, including Gigi Hadid, Fifth Harmony’s Camilla Cabello, models Lily Donaldson and Martha Hunt.

The singer posted a snap of her squad with the caption, “Happy Halloween from Deadpool, a Cub Scout, Martha Brady, a space cadet, a granny with a lost cat, black swan, and a birthday girl dressed as a cat."

If her Deadpool costume looks pretty spot on -- it should! She borrowed it from the film's star, BFF Blake Lively’s hubby Ryan Reynolds. The 26-year-old wrote on social media, “Thanks @vancityreynolds for this costume ... You're the BEST deadpool inside contact ever.”

Umm yeah! Do you think he could hook us up with Two Guys A Girl And A Pizza Place merch?

🎃

A photo posted by Taylor Swift (@taylorswift) on Oct 31, 2016 at 7:11pm PDT

Another member of Taylor's squad, Lena Dunham, went for a cheeky (and nipped out!) costume when she poked fun at Donald Trump's pussy-grabbing ways when she posed as a cat being fondled. Meow!

Happy Halloween! With love from a Grabbed Pussy ✋🐱 📸 by the very tolerant @jenna_wb #imanasshole

A photo posted by Lena Dunham (@lenadunham) on Oct 31, 2016 at 6:36pm PDT

Paris Hilton and Rachel Zoe were two more celebs who went all out for All Hallow's Eve. Paris sizzled in a Tinkerbell costume, which she donned for Adam Levine's rockin' party in Los Angeles. Rachel beamed as she celebrated in Malibu in a white princess costume while guarded by son Klaus, who dressed as a knight.

Well this is boring!

Kim Kardashian broke her social media silence yesterday for the first time since her Paris robbery with three posts on her app Kimkardashianwest.com, and while one is a glaringly obvious plug for one of her endorsed products, the other two seem to be a way to slowly return back to the limelight.

"Downtime #LumeeCollab," she captioned a throwback photo of herself checking her phone. We might have been fooled into thinking it was a new pic, except for the fact her face looks totally different now!

The reality star also shared a link to old family photos put together by her sister Kourtney, as well as a memo written by personal assistant Steph Sheppard about last minute Halloween costume ideas. Riveting!

November 3 will mark one month since the Keeping Up with the Kardashians star was held at gunpoint in her hotel room and robbed off $10 million worth of jewelry, and although she's quietly stepped out for frozen yogurt and to catch a Kanye concert, she's pretty much been holed up in her gated community recovering from the ordeal.

You just know she's itching to be back in the spotlight! Nobody's even really talking about her, and that must be freaking her out!

UPDATE: Apparently Kimmy K agrees with us that these were a snoozefest, because she just deleted all three!

Alessandra Ambrosio and partner Jamie Mazur took daughter Anja and son Noah trick or treating last night for Halloween, and we can't get over how cute they are! Jamie wore a pretty half assed cop outfit (sorry buddy!), but Noah nailed it with his police costume. Alessandra dressed as a rabbit, and we like the fact that she kept it on the reserved side. It always grosses us out when Hollywood moms wear scandalous outfits to take their kids out!

We weren't quite sure what Anja was at first, but Ale posted a few shots on Instagram and explained. "My Voodoo Child 👻🎃❤️☠️👹🍭 #happyhalloween," the Victoria's Secret model wrote alongside a snapshot of her adorable little girl. Aha! Nicely done:

Happy Halloween 🎃👻❤️

A photo posted by Alessandra Ambrosio (@alessandraambrosio) on Oct 31, 2016 at 7:42pm PDT

Kelly Osbourne and mom Sharon landed at Los Angeles International Airport on Monday after celebrating the starlet's 32nd birthday in London, and not only did they look fab after the long flight, but they had a good laugh when their driver whipped out a crying baby sign and put it over Sharon's face!

Earlier in the week the ladies were snapped arriving at Fountain Studios in London, and it seems like they were having a bit of a squabble prior to the X Factor event. Sharon appeared to be in a hurry when she got out of the car, and though Kelly kinda chased after her, Sharon gave her daughter the hand! We're not sure what the fight was about, but the two haven't always had the best relationship.

Still, it couldn't have been that bad, because they were able to forget about it when they partied it up on Saturday, with famous faces like Nicole Scherzinger and Simon Cowell!

We love everything about this Halloween picture!

Not only did Fergie and hubby Josh Duhamel get all decked out for a trick or treating run with little Axl on Monday night, but mom and son totally coordinated with their costumes! Fergie dressed as a vintage Harley Quinn (complete with a baseball bat) while Axl dressed as the Joker. Josh was Mr. Incredible, so, not quite a comic book character and not a member of the Suicide Squad, but definitely in the right category.

Last week Fergie was snapped taking Axl to a Halloween party, and the celebritot was wearing a Spider-Man costume, so clearly he's got a thing for action characters...

It's the only day of the year when a celeb might go unrecognized!

Halloween is upon us, and Hollywood is suited up and ready to do some trick-or-treating! A variety of famous faces showed off their costumes on social media, and we have to give everyone props for their creativity! Our favorite? Beyonce and Blue Ivy as Salt-n-Pepa.

Other good ones are Kourtney Kardashian and her kids as Power Rangers, Nicole Richie and a pal as Siegfried and Roy, and Martha Stewart as a bloody nurse.

We wonder how Tyga feels about his son King Cairo going as his soon-to-be stepdad Rob Kardashian? Blac Chyna (also dressed as Rob!) helped their little one get decked out in a Dodgers hat, Gucci shower slides, and a black sweatsuit to go as the sock designer, and we doubt T-Raww appreciated this one!

Check out all the rest in our gallery below.

This is the cutest thing ever I must say!! 😩😍 King doesn't want to be the Ferrari man anymore for Halloween but instead wants to be Rob ☺️☘️!!!

A video posted by Blac Chyna (@blacchyna) on Oct 31, 2016 at 8:56am PDT

Conservative birds of a feather -- flock together!

Noted Republican Caitlyn Jenner was hanging with another conservative the Vintage Grocer's in Malibu, Calif. The pal made his allegiance to Donald Trump clear when he donned a bright red "Make America Great Again" hat and a huge grin.

Do you think Caitlyn and her male companion were talking about what a stand-up dude The Donald is?

The former Olympian has publicly stated she's all for the Republican candidate -- despite most of Hollywood and the LGBTQ community being liberal and anti Trump. But the 67-year-old has always marched to the beat of her own drummer!

In June, the reality TV star told Stat, “Trump seems to be very much for women ... He seems very much behind the LGBT community because of what happened in North Carolina with the bathroom issue. He backed the LGBT community.”

Oh yeah totally, Trump's a real freedom fighter ...

Maybe she's not worried that he's going to grab her by the nether regions?