Band Or Solo Artist?: Both
Band Name(s): Sonny & Cher
Genre: Pop, Rock, Folk, Dance, Disco
Greatest Hit: "Believe" (1998)

To sum up Cher's importance, she's the only artist to have a number-one single on a Billboard chart in each of the past six decades. Often referred to as the Goddess of Pop, she's worked in every area of entertainment. Originally, she was part of the duo Sonny & Cher, before becoming a solo artist with singles like "Gypsys, Tramps & Thieves," and pursuing a successful film career with Mask and Moonstruck.

Sure, she's won Academy Awards, Grammy Awards, Emmys, and Golden Globe Awards, but she is still bad enough to rock ass-less chaps.