Wanda Jackson

She had several hits in the late '50s and early '60s, including "Mean Mean Man," "Let's Have a Party" and "Fujiyama Mama." In the '70s she kept recording music, mostly gospel. She's 65 now and still touring. She's just released her first studio recording in 15 years, Heart Trouble. Guest musicians, including Elvis Costello and The Cramps, join her for several tracks.

In the 1950s, Elvis Presley encouraged Jackson to sing rockabilly. She was notable for writing and performing her own independent and forceful songs, says rock historian Ed Ward. Her sexual persona matched Presley's, but proved to be a detriment to her career -- so she returned to country music.