Justin Bieber and his buddy Taylor Swift are making magic together in the studio!

The 18-year-old pop star told the U.K's Capital FM that he and Taylor recorded a duet for his upcoming album Believe.

Biebs told the station:

"You know, the whole album is just so different, there's so many different people collaborating. It's crazy. I mean I even wrote a song with Taylor Swift, so the whole album ranges differently."

With these two young powerhouses on one track ... already sounds like a hit to us!

JB's new album, due to hit stores in June, will reportedly include collaborations with Drake, Timbaland, Kanye West and Usher.

Divalicious!

Covering up her curves in a short black dress and tights, the sexiest thing about Christina Aguilera's outfit was her Louboutins, but she still rocked her trademark red lips and struck some cute poses for the camera at an LA-area Starbucks, on Thursday afternoon.

Meanwhile Jennifer Lopez looked fierce in a skintight coral dress and some pretty bling, as she worked it for her own photo shoot at the CBS studios just a few blocks away.

If you had to choose; which Grammy winner looked the hottest?

Will these two ever get along?

Frances Bean Cobain finally had enough of mom Courtney Love's embarrassing Tweets, after the singer claimed that late hubby Kurt Cobain's bandmate Dave Grohl had once "hit on" their only daughter, and "she was curious." Yikes!

This prompted the usually private 19-year-old to lash out, Tweeting in response:

"While I'm generally silent on the affairs of my biological mother, her recent tirade has taken a gross turn. I have never been approached by Dave Grohl in more than a platonic way. I'm in a monogamous relationship and very happy."

She added, "Twitter should ban my mother."

Grohl was also quick to shoot down any rumors of a romance, telling E! News, "Unfortunately Courtney is on another hateful Twitter rant. These new accusations are upsetting, offensive and absolutely untrue."

Should Twitter ban Courtney for slander?

Just a few short weeks after her $6 million lawsuit against ABC was declared a mistrial, the former Desperate Housewives star showed off her ageless bikini 'bod while enjoying a relaxing vacation in St. Barths -- with a new mystery man! -- on Thursday afternoon.

The 48-year-old flaunted her flat tummy and toned legs in a sexy blue bikini, before covering up for a romantic stroll on the beach with her man.

Sheridan's hit a career lull since creator Marc Cherry axed her character from Housewives in 2008 because of salary disputes, arguments over forgotten lines, and tardiness to rehearsals.

At least she still has her looks!

Twitter

It's baby Luca's first photo shoot!

New mom Hilary Duff shared her first official family photo via Twitter on Thursday; a black and white pic that features husband Mike Comrie and their newborn son, Luca Cruz.

The former Disney star and her hockey player hubby welcomed their first little bundle of joy on March 20, and she's been busting her buns at the gym ever since!

Duff has become a regular at SoulCycle spin class in West Hollywood, but she hates to leave her baby's side for too long! The 24-year-old Tweeted Thursday, "Almost home to feed my little bambino!nice to get away for an hour to do something good for myself! But I miss his little face when I'm gone." Aww!

In case you missed it, X17 captured this exclusive footage yesterday of Kim and Khloe Kardashian almost involved in a fender bender in Beverly Hills. They were definitely involved in some road rage, though!

The reality starlets were caught up in some (unscripted!) drama yesterday when the driver of a grey Mercedes almost crashed into their car while trying to film them. We think it's time for our favorite E! darlings to travel Obama style with cops and security surrounding their vehicle!

We wonder if Kim ran into Kanye's loving arms for comfort?!

It could have been a Kardashian Krash!!!

Kristin Cavallari's inching closer to motherhood and she did what any woman would do in this case... go maternity clothes shopping!

The mom-to-be was looking fab as usual when she was spotted at A Pea in the Pod in Beverly Hills today looking for some new threads to wear while awaiting the birth of her first born.

The reality star, who seems to stay fashionable throughout her pregnancy, hasn't been shy about it, even telling Glamoholic last month that her and hubby Jay Cutler would like more kids. If that's the case, then she's shopping at the right place!

She gave birth less than three weeks ago, but she's going all out with the workouts!

After stopping by the gym yesterday, Hilary Duff tweeted, "Big News! I’m working w/ JOHNSON’S Baby on its new charitable program, JOHNSON’S Baby CARES - I love being a mom :)"

JOHNSON’S Baby CARES supports maternal and baby health and Hil will join the effort as the organization launches their campaign supporting Save the Children. Good to see her using her fame for a good cause!