1. They sang about being on the "Cover of the Rolling Stone" - then got on the cover!: Dr. Hook and the Medicine Show
2. New Orleans singer/pianist born Malcolm Rebennack, Jr.: Dr. John
3. The Thompson Twins' follow-up to "Hold Me Now": "Doctor! Doctor!"
4. A Little Feat song, also the title of a tribute album for Lowell George: "Rock and Roll Doctor"
5. Rapper famous for "The Chronic": Dr. Dre
6. Parliament's 1976 album: "The Clones of Dr. Funkenstein"
7. He's the one that makes you feel all right, according to Motley Crue: Dr. Feelgood
8. Jackson Browne's first hit, from 1972: "Doctor, My Eyes"
9. "Well, well, well, you're feeling fine" was his statement: "Doctor Robert"
10. Their hits included "Little Miss Can't Be Wrong" and "Two Princes": Spin Doctors
11. A Top 20 hit for Kiss in 1976: "Calling Dr. Love"
12. British group who covered "Spirit in the Sky" in 1986: Doctor and the Medics
13. Steely Dan asked "are you with me" to him: "Doctor Wu"
14. A 1979 hit for Robert Palmer: "Bad Case of Loving You (Doctor, Doctor)"
15. Irish folk-rock band led by Davy Carton and Leo Moran: Saw Doctors
16. He said "Oo ee, oo ah ah, ting tang, walla walla bing bang": "Witch Doctor"
17. Disco group who had a hit with "Whispering/Cherchez La Femme/C'est Si Bon" : Dr. Buzzard's Original Savannah Band

Bonus: Weird Al Yankovic's Madonna parody: "Like a Surgeon"