Funnyman David Spade celebrated his 50th birthday with a star-studded bash at the Sunset Tower Hotel in Los Angeles this week (beg21Jul14). The comedian turned 50 on Tuesday (22Jul14) and was joined at the gathering that evening by Chris Rock, Judd Apatow, Sarah Silverman and Steve Martin, according to E! Online. Spade was surprised with a special birthday video filled with messages from his celebrity pals, including Sir Elton John, Jennifer Aniston, Brad Pitt, Courteney Cox, Rob Lowe, Sean Penn, Adam Sandler and his co-stars from TV shows Just Shoot Me! and Rules of Engagement. A source source tells E! Online, "Most people did funny comedy bits or jokes, but some were also sincere and heartfelt."