Not that I'm a big boy-band-on-Broadway defender, but I saw Joey Fatone in Little Shop a bunch of times and I thought he was great as Seymour. In fact, after the first time I saw him, I HAD to see him again. All of this to my shock, mind you since Hunter Foster was so wonderful. I guess I had low expectations of his replacement. Plus, I was never an NSYNC fan. I did not see him in Rent though, but I think he got better reviews in Little Shop than Rent. Anyway now that that's said...
I would definitely say that I agree that all of the young ladies already mentioned, Ashlee Simpson most importantly, Britney Spears, Christina Aguilera, Hilary Duff, Lindsay Lohan, and especially Ashlee's big sis Jessica should stay FAR AWAY from even the thought of Broadway. There's just that lack of conformity that happens when a popular singer decides to be a Broadway star that we don't need to experience as often as these big names have been popping up.
My two cents!
"Candy is dandy but liquor is quicker" -- Willy Wonka