Jennie Garth and her hunky boyfriend Dave Abrams are engaged!

The two recently celebrated her 43rd birthday at the Dreams Tulum Resort & Spa in Mexico, and it seems like that's where he popped the question! Reps for the pair confirmed the news, and a source close to the couple told People, "Dave had been working on this for months, and really wanted to plan something special for her around her birthday and make it perfect." Aww!

The pair have only been dating for a few months, but after seeing photos of them on vacation, it seems like they're totally smitten with one another. They took a trip to Santa Barbara in March, and that was around the time Jennie's ex-husband Peter Facinelli got engaged to girlfriend Jamie Alexander. Garth and Facinelli share three daughters together: Luca, 17, Lola, 12, and Fiona, 8.

Congrats!

On Wednesday night Ariana Grande performed at The Forum in Inglewood, California, and Justin Bieber made a surprise appearance for "Love Me Harder," and he also sang his own tunes, "As Long as You Love Me," and "Where Are U Now." Scooter Braun manages both of the stars and Bieber joined Ariana onstage last month in Miami so this isn't a shock, but we WERE stunned to see how handsy the Biebs got with Ariana!

UPDATE:
While it was initially reported that Ariana's main squeeze, Big Sean, was furious over the onstage PDA, his team is denying that there's any drama. There was a screen capture of a tweet that appeared to come from Big Sean's Twitter account that read, "This kid is about to learn not to touch my girl like that. Beliebe that," but his publicist claims the tweet is fake. No word on who put it out there in the first place, but TMZ posted a picture of it, and other websites posted a different tweet from an account that appeared to be Big Sean's. The other tweet was a photo of Bieber all over Ariana with Big Sean seemingly writing, "Wow."

The last time Justin joined Ariana onstage he totally messed up the lyrics to "Love Me Harder," and this time he was able to get through the whole song without any screw ups. Before the show, JB tweeted, "What should I do tonight? Hmmmm" and after he added, "Love the stage. Thanks for having me @ArianaGrande and thanks LA. Gotta tour again soon :)"

Click thru to see complete videos of all three songs!

Kim Kardashian, Kanye West and their daughter Nori (plus Khloe!) jetted in to Armenia last night, and when they arrived on Wednesday, fans and photographers went WILD at the airport.

Our photographer on the scene, who was born and raised in Armenia, tells X17online, "I've never seen anything like this ... it was absolute mayhem. The people here are CRAZY for Kim K!"

Kanye carried Nori through the terminal with Kim and Khloe close by, and the group headed to their hotel, presumably to relax for the rest of the day. The 100th anniversary of the genocide of Armenian people is on April 24, but Kim's rep recently stated that the reality starlet won't be attending any commemorative events -- apparently she just wants to get in touch with her roots.

As you know, Kim's father Robert was an immigrant from the country, the family plans to visit the town of Gyumri, where relatives of her dad may live. The group will also stop by the genocide monument, museums and meet with politicians, according to TMZ.

Kristen Stewart looked a bit bummed out when X17 photographers snapped her at Los Angeles International Airport on Tuesday afternoon.

Might this have something to do with the fact that her former flame Rob Pattinson JUST got engaged to girlfriend FKA Twigs? Rob and his lady love were only together for six months before he popped the question, so that's definitely gotta sting! Then again, K. Stew was the one who cheated on Rob back in the day, so this is kinda on her!

The 24-year-old actress had her headphones on when photographers asked about Rob's engagement, so it doesn't seem like she heard the questions. But where's her lady love Alicia Cargile? We haven't seen the two together in a few weeks and they're usually joined at the hip!

Giuliana Rancic already defended her frail frame by revealing that her cancer medication is preventing her from gaining weight, and now the 40-year-old E! host reveals to Dr. Oz that she isn't happy with the way she looks.

Rancic told Dr. Oz:

"This past year, I think people have noticed more than ever because I lost more weight. Trust me, I don't want to lose weight. I don't think it looks attractive. I think I used to be more attractive. But, I'm doing the best I can. And right now, it’s killing me to look in the mirror and see that I’ve just lost all. I’m just not the girl I used to be."

Rancic added that she started seeing a personal trainer, and when she was advised that she needed to hit the gym she was initially confused. But after being told that she needed to do weight work instead of cardio, Giuliana joked, "So there I am, lifting my little ten pound weights. I'm just trying to get some more definition, because I want a little bit of curve, I want to be sexy."

Giuliana underwent a double mastectomy in 2011 after revealing she had breast cancer, and on Monday she appeared on The Today Show and said, "I do not have an eating disorder. I have never had an eating disorder. I wanted to be very clear about that. In fact, I eat a lot. People always love to tweet: 'Eat a burger.' I eat burgers. It's not working."

Lip Sync Battle seemed pretty awesome after the first clips surfaced online last month, but now we REALLY wanna watch!

Justin Bieber appears in a new teaser for the show, and he dresses up as Ozzy Osbourne in an awesome rendition of the rocker's hit "Crazy Train." From the nail polish to the eyes, the Biebs nails it -- and it looks like he had a blast onstage!

Bieber and Ozzy appeared in a Super Bowl commercial for Best Buy back in 2012, and we're not sure whether the stars stay in touch, but we're hoping the Prince of Darkness loved it just as much as we did! Can't wait to watch the full version of Bieber's performance later this season!

In other news, Bieber recently revealed that he's not looking for a girlfriend, but clearly he's fine with playing the field! A new Instagram photo shows the 21-year-old pop star cuddling up to a hot new babe, but get this -- she's Natalia Skye, the cousin of Bieber's former flame Chantel Jeffries! Skye captioned the pic "Just Friends," but we're not sure if we believe her...

Drake may not have Chris Brown's dance moves or Justin Bieber's ripped body, but there's something about the Canadian rapper that we just LOVE. Like, we totally understand why Amanda Bynes said she wanted him to murder her, uh, well, you know how that story goes!

On Tuesday night the former Degrassi: The Next Generation star hit up The Nice Guy nightclub in Hollywood, and on the way out he rolled down his window and struck a pose for photographers. Drizzy was celebrating his friend Baka's release from jail, and earlier in the evening he posted a photo on Instagram and wrote, "Something in the air today. A lot of good things happening at once. But this one means the most! Been waiting for 11 months! Baka finally home!"

Baka (nee Travis Savoury) was reportedly arrested in connection with a human trafficking investigation, and he appeared on Drake's last album. Hopefully the boys stayed out of trouble! If not, we're Drake could charm his way out of just about any situation with that sexy smile...

We already knew that Jill Duggar welcomed her first child on Monday, and now the reality star and her hubby Derick Dillard have shared a sweet video from the hospital.

Duggar, who stars on on TLC's 19 Kids and Counting, looks happy and healthy, and Derick starts off by saying, "Hey everybody, it's Derick and Jill Dillard, and we've got an exciting birth announcement. We're so excited to announce the birth of our son, Israel David Dillard. He weighs a whopping 9 pounds, 10 ounces, and he was 23 inches in length."

Duggar adds, "Not everything went as expected. We were reminded of the verse that the Bible talks about where man plans his way but the Lord directs his steps. We were encouraged by that and yeah, he's just a handsome little fellow."

Duggar is the fourth child of Jim Bob and Michelle Duggar, who gained fame after a reality show chronicling their family life first aired in 2008. But will Jill follow in her mom's footsteps and pop out 19 kids? That remains to be seen...