1. "Proud Mary"
It was famously sung by Tina (and Ike) Turner:
But it was originally written by Creedence Clearwater Revival:
Others might know it as that song Beyoncé performed that one time:
2. "This Woman's Work"
It's famously covered by Maxwell:
But it's really a Kate Bush song:
Maxwell's version became popular because it was featured in a sexy scene during the 2000 movie "Love and Basketball":
Jeff Buckley sings a very popular version of it:
But it's really a song by Leonard Cohen:
It's a really popular song to cover, as evidenced by Regina Spektor, Rufus Wainwright, etc.
4. "I Will Always Love You"
It was famously sung by Whitney Houston:
It was originally by Dolly Parton, who sang it in the movie "The Best Little Whorehouse in Texas":
Houston recorded it for her movie "The Bodyguard" with Kevin Costner:
5. "Because The Night"
The song is Patti Smith's biggest hit:
A lot of people also know it because of 10,000 Maniacs:
It was actually written by Bruce Springsteen, who didn't release the song until long after Smith's version came out:
Young people might know it by this insane cover that Cascada did:
6. "Nothing Compares 2 U"
Sinead O'Connor made this song popular:
Though it was originally written by Prince:
Kelly Clarkson covered it when she was in Dublin:
7. "Bette Davis Eyes"
Kim Carnes made this song a hit:
It was originally written by Jackie DeShannon and Donna Weiss:
Taylor Swift has a nice cover of it as well:
8. "I Think We're Alone Now"
It's famous as sung by Tiffany:
It first charted because of Tommy James & the Shondells:
It was written by their record producer Ritchie Cordell.