Jennifer Lopez  was all smiles leaving a lunch date at Osteria Mozza in LA yesterday. The American Idol  judge wasn't so happy during last night's emotional show  since she was brought to tears  by one contestant. Her small breakdown came moments after saying farewell to one of her favorites, Chris Medina . J Lo's moving on to happier things, though, and spoke to Ryan Seacrest  this morning about the video for her latest single, "On the Floor." Fans will have the opportunity to actually pick the ending for the clip , which premieres during the March 3 episode of American Idol.