Ok, now I only could find one thread on this, and there wasn't a clear answer....but in the video for "I Want You Back", (from Mick's 1983 solo album, with Lindsey singing this song)...IS THAT LINDSEY?!
I watched this video once in like 1999 or so..and I remember Janet telling me she swore it was him. That eye make-up and facial hair makes him look so weird. But I guess it's really him, and I'm checking with you guys because who knows when was the last time this was brought up!
http://www.youtube.com/watch?v=438NnNAonmc