These young stars are among the richest celebrities in Hollywood.
Women dominate Forbes' list of the 10 top-earning celebrities under 30, and many of them are pop stars.
The following five celebrity urban legends will likely live on long into the future, despite the fact that none of them is remotely true.
Pop singer Katy Perry has made a big impact on the music scene in the few years she has been around. In celebration of her 30th birthday on Saturday, join us for a look at her career so far.