"I Do Not Hook Up" (originally titled as "Hook Up") is a song written by Katy Perry, Greg Wells, and Kara DioGuardi. It is performed by Kelly Clarkson and serves as the second single to her album, All I Ever Wanted. The song was originally written and recorded by Katy Perry in 2006 for her unreleased album, (A) Katy Perry. Perry told MTV News on her connection to Kelly Clarkson, saying:
Kara and I and one of my producers, Greg Wells — when I was writing for this record that took five years and [encompassed] all these songs — we got together in a studio and we wrote a song for my record called 'I Do Not Hook Up,' but it didn't make it on my record," Perry said. "Just because there were so many different songs and there were only 12 slots allotted for the record, so ... it was kind of one of those songs that was just, like, still there. And Kelly Clarkson heard it. I guess she liked it, and she recorded it — and another song too.
Perry thanked Clarkson for recording the song adding that she was "excited" about the single release, hoping that Clarkson would perform the song live. "Long Shot," another track from (A) Katy Perry, was also given to Kelly Clarkson.