1. This Bruce Springsteen song is best remembered for the video in which he plays baseball: "Glory Days"
2. "Got a good reason, for taking the easy way out": "Day Tripper"
3. David LaFlamme's 60s band; their most famous song is "White Bird": It's A Beautiful Day
4. Their American Idiot album became a Broadway musical this year: Green Day
5. "Que Sera, Sera (Whatever Will Be, Will Be)" singer: Doris Day
6. 1969 gospel hit for the Edwin Hawkins Singers: "Oh Happy Day"
7. 1985 Prince album with the psychedelic cover and 60s-inspired songs: Around The World In A Day
8. "Jerome! Bring me my mirror!": Morris Day
9. Chicago VIII hit in which they sing about their childhoods: "Old Days"
10. 1983 U2 song that prominently features the piano; it was written about the Polish Solidarity movement: "New Year's Day"
11. 2000 U2 song that won the Record of the Year and Song of the Year Grammy Awards: "Beautiful Day"
12. 1971 Paul McCartney hit about the life of a normal office girl: "Another Day"
13. He originally sang "Rockin' Robin": Bobby Day
14. "Absolutely (Story Of A Girl" band: Nine Days
15. His only hit as a singer was "Undercover Angel" in 1977: Alan O'Day
16. Daniel Powter's 2005 hit that was featured on American Idol; it sounds a lot like Elton John to me: "Bad Day"
17. The last song on the Beatles' Sergeant Pepper's Lonely Hearts Club Band album: "A Day In The Life"

Bonus: OutKast song in which Andre 3000 sings as Cupid: "Happy Valentine's Day"