Who'd You Rather?

"Real Housewives of Orange County" blondes Alexis Bellino and Gretchen Rossi slinked around LAVO nightclub in Vegas this weekend.

Lately, Zac Efron has gone from looking like a disheveled hipster twentysomething (left) -- to a well groomed young businessman (right).

Reality show host/judge Cat Deeley and Kara DioGuardi competed for face time at the same event in Beverly Hills the other night.

Former "American Idol" wannabeen Melinda Doolittle and "Hairspray" star Nikki Blonsky glammed it up at the same event in NYC last night.

Colombian goddesses Shakira and Sofia Vergara sizzled at last night's American Music Awards.

Elvis Costello (left) and Roger Daltry (right) both attended The Michael J. Fox Foundation benefit called "A Funny Thing Happened on the Way to Cure Parkinson's" at The Waldorf Astoria Hotel in New York City this weekend.

Kellan Lutz -- who says he turned down the chance to audition for the part of Edward Cullen in the "Twilight" movies -- and the guy who landed the role, Robert Pattinson.

Blonde bombshells Nancy Sinatra, 69, Bruce Vilanch, 60, and Loretta Swit, 72, worked it at the same event in L.A. the other day.

Biological sisters and actresses Jennifer Tilly, 51, and Meg Tilly, 49, showed off their stellar genes at the same event in L.A. the other day.

"Cheers" stars Woody Harrelson, 48, and Ted Danson, 61, reunited at the same event in L.A. on Monday.

Dressed to the nines in bone colored suits, Sally Kellerman, 72, and Anjelica Huston, 58, stunned the crowd at the same event in Hollywood this weekend.

"Star Trek" hottie Zoe Saldana (left) and "Fantastic Four" babe Jessica Alba (right) both showed up to the Museum of Contemporary Art's 30th anniversary bash this weekend.

Former It boys Brandon "Greasy Bear" Davis and Stavros Niarchos -- Paris Hilton's ex -- partied like it's 2006 at the same event in West Hollywood on Thursday.

Sitting on opposite sides of the makeup spectrum, television actresses Angie Harmon and Debra Messing faced off at the same event in Beverly Hills on Monday.

Country music Barbie dolls Dolly Parton, 63, and Wynonna Judd, 45, wigged out at the same event in Nashville on Monday.

Hollywood newbies and "Glee" co-stars Mark Salling (left) and Cory Monteith (right) pimped themselves at the same promotional event in L.A. this weekend.