1. Soul singer whose hits included "You Send Me" and "A Change Is Gonna Come": Sam Cooke
2. He discovered Elvis: Sam Phillips
3. American composer famous for his "Adagio" and "School for Scandal Overture": Samuel Barber
4. Country singer who popularized "Help Me Make It Through The Night": Sammi Smith
5. A Top 20 hit for Olivia Newton-John in 1977: "Sam"
6. She let us know "Naughty Girls (Need Love Too) in 1988: Samantha Fox
7. Actor who starred in, and recorded several songs for the soundtrack of, Black Snake Moan: Samuel L. Jackson
8. Mandolinist and fiddler who often plays with Bela Fleck, Jerry Douglas, et. al.: Sam Bush
9. He narrates the Grateful Dead's "U.S. Blues": Uncle Sam
10. The third British Number One hit for T Rex: "Telegram Sam"
11. An 8-track of their greatest hits was playing in the Bluesmobile when Elwood ran the red light: Sam and Dave
12. Their biggest hit was "Wooly Bully" in 1965: Sam the Sham and the Pharaohs
13. Moroccan children's song often sung by Scouts - or by fast food fans: "A Ram Sam Sam"
14. Irish singer who hit with "Baby Come On Over" in 2001: Samantha Mumba
15. They remixed Bryan Adams' "Heaven" in 2002: DJ Sammy & Yanou
16. A Rat Pack member: Sammy Davis, Jr.
17. He was Van Halen's second lead singer: Sammy Hagar

Bonus: A Jimi Hendrix Experience tour of the universe on which "there'll be no throwing cigarette butts out the window": "The Stars That Play With Laughing Sam's Dice"