Celebrities give Obama emotional farewell in video

“I never cried before, from an election result,” singer John Legend says in the video.

“When I was at the U.N. and I heard our president say that climate change is the most important issue facing, not only this generation but also future generations, it was inspiring,” DiCaprio said.

“The CVS experience with Michelle (Obama) was pretty cool and dancing with Barack at his birthday party. And he’s a good dancer. He should not get any flack for that — you’re a good dancer,” DeGeneres said.