Matt,Ooh Lala was a remake of one that he did in the early seventies. I can't remember what album, but a good tune. Reason to Believe is from Every Picture from the same era.
I think most people who listened to Rock in those days will agree that this was wonderful music, and as Bartholemew said included a lot of trad instruments and styles creating a wonderful new sound.
But "Do You Think I'm Sexy"? Other than providing a great comic bit in "So I Married an Axe Murderer" was drivel and the start of a long, ongoing downhill musical slide.