Music Opportunity

So my friend Glenn Wooten is really into music and I'm guessing that's what he's going to school for. I was recently informed that he made a CD to promote his musical stylings. I listened to it and after laughing (Glenn's one of my good friends so it was just weird hearing him rap) I kinda settled down and actually listened to it and I have to tell you, it's pretty good. I mean for an 18 year-old kid who wants to make it big in the music industry it was really well produced. Some of his lyrics were a bit mature for his age but still it was pretty good and I have to give him props on it. I texted him after I listened to it and said that I wanted to collaborate with him, jokingly, and he told me that if I was serious then he would work with me because he wanted to drop another album before school was over anyway. So i'm thinking what should I do? Hhhmmmmmm.....