Who'd You Rather?

Lady Gaga's little sister Natali Germanotta and Lady Gaga herself both put on some getups, wigs and heavy makeup and hit up the CFDA Awards in NYC on Monday.

Former "10" star Bo Derek, 54, and country diva Shania Twain, 45, were all smiles at the same event in Hollywood on Thursday.

"Hangover Part II" buds Zach Galifianakis and Ed Helms got chummy at the film's premiere in L.A. this week.

Former Pussycat Dolls lead singer Nicole Scherzinger, 32, just replaced former Girls Aloud member Cheryl Cole, 27, on the U.S. version of "The X Factor."

Television actresses Rachel Bilson and Sarah Michelle Gellar were all smiles at the same event in NYC on Thursday.

Here's Arnold Schwarzenegger's wife of 25 years, Maria Shriver -- and the mother of his secret love child, Mildred "Patty" Baena.

With Danielle Staub off the show and stripping, table flipper extraordinaire Teresa Giudice's new enemy on "Real Housewives of New Jersey" is her real life sister-in-law -- and new cast member -- Melissa Gorga.

Melissa McCarthy, Wendi McLendon-Covey, Ellie Kemper, Kristen Wiig, Maya Rudolph and Rose Byrne all star in the hysterical comedy "Bridesmaids."

Simon Cowell's ex-girlfriend Terri Seymour and his fellow "X-Factor" judge Paula Abdul both worked their smiles at the same event in Beverly Hills on Thursday.

Exotic brunette beauties Rosario Dawson and Vanessa Hudgens both shined at the same event in Cannes on Thursday.

Here's fired "Two and a Half Men" star Charlie Sheen and newly hired "Two and a Half Men" star Ashton Kutcher.

Lindsay Lohan's wonderful father is Michael Lohan and The Situation's lovely pops is Frank Sorrentino.

Here's exiting "CBS Evening News" host Katie Couric -- and exiting "Today" co-host Meredith Vieira.

Food Network star Giada De Laurentiis, 40, and "Dancing with the Stars" host Brooke Burke, 39, were all smiles at the same event in L.A. on Thursday.

Beauty queen roommates Miss USA Rima Fakih, 25, Miss Teen USA Kamie Crawford, 18, and Miss Universe Ximena Navarette, 23, all sashayed at the same event in NYC on Thursday.

Former singers and Disney stars Amanda Joy "AJ" Michalka, 20, (left) and her "Hellcats" sister Alyson "Aly" Michalka, 22, (right) both posed at the same event in L.A. on Wednesday.