Who'd You Rather?

Rafael Nadal, Pete Sampras, Andre Agassi and Roger Federer all showed up to the same tennis event in Palm Springs this weekend.

Deryck Whibley-Lavigne, 29, and Nick Cannon-Carey, 29, both showed up to the same event in L.A. on Wednesday.

"Clan of the Cave Bear" star Daryl Hannah, 49, and former talk show host Ricki Lake, 41, both showed up to the same event in West Hollywood on Thursday.

Believe it or not, but Gwyneth Paltrow, 37, and Michelle Rodriguez, 32, were both at the same event in Abu Dhabi on Wednesday.

Folky female singers Joan Osborne, 47, and Suzanne Vega, 50, rocked out at the same event in NYC on Monday.

The newest "Real Housewives of New York" Sonja Morgan (left) and Jennifer Gilbert (right) were ready for their closeups at the same event in NYC the other day.

Oscar non-nominees Jennifer Lopez, 40, and Demi Moore, 47, vogued for the cameras at the Academy Awards.

Here's "Avatar" star Sam Worthington and Zac Efron -- who's not in any nominated films -- on the Oscar red carpet.

With their red lipsticks in tow, Rose McGowan and Amy Smart both showed up to the same event in L.A. on Thursday.

Chandler Bing's mom Morgan Fairchild, 60, and former "Hart to Hart" star Stefanie Powers, 67, both showed up to the same event in L.A. recently.

Divorced blonde Oscar winners Reese Witherspoon, 33,and Renee Zellweger, 40, both strutted at the same event in L.A. on Tuesday.

"Twilight" hunk Kellan Lutz, "True Blood" star Stephen Moyer and "Vampire Diaries" hottie Paul Wesley vamped it up at the same event in NYC on Monday.

Here's "Jersey Shore" hair goddess Snooki at an event in NYC this weekend (left) -- and former Victoria's Secret model Laetitia Casta at an event in Paris on Saturday (right).

"Brothers & Sisters" stars Dave Annable and Balthazar Getty posed for a family portrait at the same poker event in L.A. this weekend.

Gabrielle Union (left) and Sandra Bullock (right) both attended the NAACP Image Awards on Friday night.

TV moms Florence Henderson, 76, of "The Brady Bunch" (left) -- and Marion Ross, 81, of "Happy Days" (right) reunited at some event in NYC this week.