Who'd You Rather?

Katy Perry, Taylor Swift, Rihanna and Fergie all attended a pre-Grammy party at the Beverly Hilton over the weekend.

Bijou Phillips, 29, Milla Jovovich, 34, Nicky Hilton , 26, took in the arts at the 1st Annual Celebration for L.A. Arts Monthly.

Here's "Nip/Tuck" star Kelly Carlson yesterday in D.C. (left) -- and again, before turning to the dark side, back in November (right).

Kristen Bell, 29, Kristin Cavallari, 23, and Kristin Chenoweth, 41, all blonded at the same L.A. premiere last night.

Miss Teen USA Stormi Henley, 19 (left), Miss Universe Stefania Fernandez, 19 (center), and Miss USA Kristen Dalton, 23 (right), put their best seductive faces forward at the same photo shoot in NYC on Tuesday.

NBA wives Khloe Kardashian (top) and Vanessa Bryant (bottom) showed off their heavy mascara and bling, while taking pics as their L.A. Laker husbands Lamar Odom and Kobe Bryant were honored at the White House on Monday.

Cindy Crawford, Reese Witherspoon, Drew Barrymore and Julia Roberts all did their part at the Hope for Haiti benefit on Friday night

Iconic television stars Betty White, 88, and Candice Bergen, 63, stunned the crowd at the same event in L.A. this week.

Former Cosmopolitan magazine centerfold turned Republican Senator-elect Scott Brown (left) and Republican Congressman Aaron Schock (right) are very liberal when it comes to flaunting their buff pecs and abs.

Both 39-year-old German supermodel Claudia Schiffer (left) and 45-year-old Australian supermodel Elle Macpherson (right) walked the streets of London yesterday.

Here's surgically refurbished human "Hills" star Heidi Montag in L.A. on Monday (left) -- and the natural, fresh-faced 19-year-old back in 2006 (right).

Metrosexual muscleheads Joey Lawrence and Jesse Metcalfe tooled around the same event in L.A. on Thursday.

Former President Bill Clinton (left) and current President Barack Obama (right) were joined by former President George W. Bush (not pictured) at the White House on Saturday to announce a plan to raise money for Haiti.

Comedy duo Tommy Chong (left) and Cheech Marin (right) reunited at some marijuana event in D.C. on Wednesday.

George Clooney's "Up in the Air" co-stars Vera Farmiga (left) and Anna Kendrick (right) landed at the same event in NYC on Tuesday.

Here's "Bachelor" Jake Pavelka (left) -- and Ryan Callahan (right), the producer who got fired after allegedly hooking up with Rozlyn.