As the evening's special guest, Desperate Housewife Eva Longoria is the sizzling highlight Saturday at a taping of Hot Tamales Live! – an all-female comedy and variety show – at Caesars Palace in Las Vegas.

Patrick Dempsey and Amy Adams rule the red carpet at the Hollywood premiere of their film Enchanted on Saturday. While the actors were (mostly) all smiles, the two lamented Dempsey being passed up as PEOPLE's Sexiest Man Alive. Joked Dempsey: "Always a bridesmaid, never a bride."

CASINO ROYALS

Ashton Kutcher and Demi Moore make a handy appearance at the opening of the Planet Hollywood Resort & Casino in Las Vegas on Sunday. Moore, along with ex Bruce Willis, was one of the restaurant chain's original financial backers.

NESTING INSTINCTS

Christina Aguilera calls attention to her growing baby bump while out furniture shopping with husband Jordan Bratman (not pictured) Saturday in Beverly Hills.

EXTRACURRICULAR FUN

School's out, but High School Musical costars Ashley Tisdale and Vanessa Hudgens continue hanging tight backstage before presenting at the American Music Awards on Sunday.

COGNITIVE DISSONANCE

Are Slash and the night's big winner Carrie Underwood planning a duet? The rock 'n roller and country crooner make a musical mash-up backstage at the American Music Awards.

B'DAY, Y'ALL

Pick a genre, any genre: Beyoncé proved she can wow the crowds with bluegrass, as she performed a country-fied version of her hit "Irreplaceable" with Jennifer Nettles and Sugarland at the American Music Awards in L.A. Sunday night. To the left, to the left... to the rodeo!

IRREPLACEABLE

Overall, it was a good night for Beyoncé, who picked up the international artist award but first turned heads on the red carpet with a revealing dress as she arrived at the Nokia Theatre Live in downtown L.A.

Growing Menagerie

Britney Spears brought her dog London to Petco in Beverly Hills on Saturday to stock up on dog food, then added to her animal kingdom, buying two fish.

YOU CAN STAND...

Rihanna added a classical touch to her hit "Umbrella" Sunday night at the American Music Awards in L.A., performing with string accompaniment. The pop star was named favorite female soul/R&B artist

DANCING WITH DISNEY

Changing partners for the night, Jennie Garth shows off her dance moves with Mickey Mouse at Disneyland in Anaheim, Calif. on Thursday for a segment that will air on Dancing with the Stars.

DASH-ING PAIR

Naomi Campbell and music producer Damon Dash get gussied up to attend the Kulture2Couture: By Design party at London's Victoria & Albert Museum on Friday.