4. Katy Perry
Stock Watch: Up. Perry’s new single “Last Friday Night (T.G.I.F.)” has been charging towards No. 1 on the Billboard Hot 100. If it hits its mark, Perry will become the first female artist in history to have five chart-toppers off one album (last year’s “Teenage Dream”), and the first artist to achieve that feat since Michael Jackson.
Latest Album: 2010’s “Teenage Dream”
Extracurricular Activities: In between shooting fireworks from her chest in her videos and getting banned from “Sesame Street,” Perry has been spending time with new hubby Russell Brand and acting. She voices Smurfette in next month’s reboot of “The Smurfs.” —Jeff Royer
(Photo: Neil Lupin, Getty Images)
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