While she was here, the pop diva told Ellen about her very personal new movie, "Part of Me"!

Ellen has had her staff dance dare some of her celebrity guests while they were on stage -- without them knowing! Take a look at this montage of our favorite dance dared celebrities!

Howie and Ellen have some great fans. They've sent some fantastic art pieces with their likeness. The two of them compared their art galleries today.

As Ellen celebrated her 1,500th show, she looked back at some of her favorite moments from 9 incredible seasons.

The comedian opened up to Ellen about his recent divorce from Katy Perry, and had only positive things to say about the singer. Plus, Ellen played a game with him in which he weighed-in on some top news stories of the week! It didn't last very long...