Us Weekly Staff

Justin Bieber, Christina Aguilera, Psy and Taylor Swift are just a few of the superstars slated to take the stage Sunday night

The slimmed-down Fashion Star mentor, who welcomed daughter Maxwell in May, feted her Jessica Simpson Collection in Florida Saturday

Plus, the single mother to Suri says doing theater is "just another opportunity to keep growing"

The actress dined with the pop star one day after a bitter, public fight with ex Justin Bieber

See what music's finest wore for the ceremony at L.A.'s Nokia Theater Nov. 18

"My wife is being the typical diva that she is," the dad joked during an appearance on Anderson Live Tuesday

The actress stunned in Elie Saab Nov. 16

The pop star donned the sexy ensemble for the show's Nov. 15 episode

The pop stars are "officially hanging out," the X Factor host says after seeing them together on set

As Kristen Stewart premieres Breaking Dawn Part 2 in Madrid, the British beauty hits the town without estranged husband Rupert Sanders to support fellow model Kate Moss

The Kardashian family matriarch slams reports that she and her husband of 21 years are going their separate ways

Its earnings make it the third highest-grossing midnight debut ever

The Friends alum's Cinematheque Gala gown looked remarkably similar to the dress both of the 90210 characters wore to their Spring Dance in 1993

Brian Austin Green and Megan Fox, Kristin Cavallari and Jay Cutler and other pairs have had second thoughts post-split

The "We Are young" singer empties out her tour carry-on for Us

"There are good days and bad days," a source tells Us Weekly of Pattinson, who is "never going to forget what she did," a pal tells Us

"Thanks for the news," she says

Ahead of the holiday season, learn more about the Dream Foundation, Susan G. Komen for the Cure and other initiatives

After Stewart was caught cheating on Pattinson with her married Snow White and the Huntsman director, the couple reconciled and finished promotions for The Twilight Saga: Breaking Dawn - Part 2

Tweeting from the set of her new commercial, the singer/designer flaunted her remarkable weight-loss

The two women met up for a meal in Calabasas, Calif. Nov. 15