Teen dream Ferreira isn't bugged by being "not a girl, not yet a woman." Her latest synth-pop confection bounces like a Stacey Q jam — and big-ups both nooky and the Almighty: "I pity the fools who realize too late/Love, sex and God are great."

Listen to "Sex Rules":

Gallery: The Week's Hottest Live Shots

“Oh Sherrie”

Steve Perry's girlfriend Sherrie Swafford was actually in the studio when Perry began writing this song--his lone Top Ten hit as a solo act--with two co-writers. The trio began at midnight one night with just "Oh, Sherrie!" and "hold on, hold on." Three hours later, they had a complete song. Swafford, however, had to wait until the next day to hear it. "Sherrie actually got tired and went to bed," Perry said. She also appeared in the video, but their relationship did not hold on for long.