Katy Perry followed through with her promise as she kisses Justin Bieber (pictured above).

She also jokingly tweeted “also heard Justin Biebers gonna b here 2night, can’t wait to tap that.” Katy Perry is known for her song “I Kissed A Girl”. She seems to be a fun loving spirit who has a funny side as well. Justin Bieber seems to be the newest and coolest thing out there right now. He seems to have taken over the music scene overnight.