Miley Cyrus With Tiffany: Miley Cyrus has more than her share of critics out there quick to argue that the 17-year-old singer is growing up too fast, but she has at least one supporter who has been there before."Miley Cyrus is on a great track," '80s singer Tiffany, now 38, told Us Magazine  at Comic-Con in San Diego on Saturday. "I know that there are a lot of people that say well when you are so young you shouldn't be sexy. "I think that in today's world you kind of have to be [sexy] -- to be competitive in the market. I think that she is doing it appropriately.  And it's always a fine line there."

Tiffany appeared at Comic-Con with '80s rival Debbie Gibson. The two star together in an upcoming campy sci-flick called Mega Python vs. Gatoroid, which plays to their music rivalry. Gibson commented on Miley as well, but had a different take. She complimented Miley's vocal abilities, but said her new image is "a little too much too soon."