Turns out those rumors about Katy Perry and Robert Pattinson may have had a little truth to them. A video has surfaced on YouTube, which shows Katy and Robert performing at a karaoke bar together. Looks like the duo may have a had a few too many when they decided to sing the Boyz II Men classic "I'll Make Love to You". It’s pretty bad but who cares it’s hilarious!! This supposedly happened in 2008 while the two were out celebrating a mutual friend's birthday.