 American Top 40. Hittin' big in the 60s, the 70s, and the 80s, these are the triathlon winners of rock and roll. Now we're up to the first solo singer ever to hit the top 10 as a teenager, then in her 20s, and her 30s, and her 40s. In this decade, she's also worked hard to become an award-winning actress. She just won the Academy Award for Best Actress of the Year. Coming in at number 15, here's Cher. She's singing the song that brought her back to the top 10. I found someone.