Lots of celebrities came out last night to celebrate the grand opening of Robert Earl's Planet Dailies & Mixology 101 at The Farmer's Market in Los Angeles, Calif.

OK! GALLERY: GAVIN DEGRAW, MARIA MENOUNOS, KATHERINE JENKINS & MORE DANCING WITH THE STARS CONTESTANTS PARTY AFTER THE SHOW 

Dancing With the Stars' Katherine Jenkins was on hand in a sexy low-cut dress, along with American Idol judge Jennifer Lopez and former contestant Pia Toscano, Mario Lopez, Lance Bass, Joe Manganiello and Arnold Schwarzenegger. 

OK! GALLERY: EMILY BLUNT & DAKOTA FANNING ENJOY A PRIVATE DINNER WITH ELIE SAAB IN NYC 

The Planet Dailies and Mixology 101 is a new cocktail lounge featuring a very fancy drink menu put together by renowned bartender, Salvatore Calabrese.