Cameron Diaz's ex-boyfriends, Justin Timberlake and John Mayer, came out to show their support at a memorial service yesterday in honor of Cameron's late father Emilio.  Emilio Diaz, only 58,  died suddenly last week of pneumonia and yesterday the Diaz family had a "celebration of life" at Mahe in Los Angeles to honor him.  Guests did not dress in drab black, but rather wore brightly colored attire and gave toasts to honor their friend and relative.  Cameron issued a statement saying "His humor and spirit will always live on in our hearts."