I think I prefer Deja Boo (and Danger for that matter) to Crazy, but I still think this whole pursuit is cool for Jonghyun. I remember him saying in an interview that he'd never compose for SHINee since that would take away from the feel of SHINee's music, so I'm glad that he got the chance to do this.
The song is still good though, I think I prefer after my second and third listens.
