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Born July 10th, 1939 Key Tracks The Staple Singers' "I'll Take You There," "Respect Yourself," "Let's Do It Again" Influenced Prince, the Pointer Sisters, Amy Winehouse

By the time the Staple Singers' string of R&B hits kicked off in the early Seventies, Mavis Staples' liquid contralto had already been tearing the roof off with her family's gospel group for two decades and had become the signature voice of the civil rights movement. She'd had some trepidation about playing to secular audiences, but as her father, Roebuck "Pops" Staples, told her, "The people in the clubs won't come to church. So we take the church to them." It worked: She's got the most undiluted gospel technique of any pop star ever. (Check out the Staples' transcendent take on "The Weight" in The Last Waltz.) In 2001, Bob Dylan described the first time he heard her sing: "That just made my hair stand up, listening to that. I mean, that just seemed like, 'That's the way the world is.'"

1. I'll Take You There
2. Respect Yourself
3. Let's Do It Again
4. Slippery People
5. The Weight
6. Touch a Hand (Make a Friend)
7. Will the Circle Be Unbroken
8. For What It's Worth
9. Hard Times Come Again No More
10. Freedom Highway

• View List: The 100 Greatest Singers of All Time
• Listen: The Ultimate Singers Playlist
• The Ballots: View Handwritten Votes
• Legends at Work: In the Studio Photos
• Voters & Methodology