They were both paying tribute to Dolly Parton at the Grammys, and had a chance encounter that didn't end too well.
Source: <a href="https://www.youtube.com/watch?v=KXdOulZ81y8&feature=youtu.be">YouTube</a>
Congratulations are in order for Ellen DeGeneres after last night's Grammys. She didn't win an award, but she did do something possibly better -- say what we were all thinking about Katy Perry's boobs. With her face. On camera. Take a look.