David Spade Says He Has No Idea How He Gained 25 Pounds of 'Mystery Weight' - Watch!

David Spade is opening up about his mystery weight! The comedian made his 25th appearance on The Ellen DeGeneres Show on Monday (October 29). PHOTOS: Check out the latest pics of David Spade During his appearance, David spoke about his new audiobook, A Polaroid Guy in a Snapchat World. He also joked that he's trying