Ira Gershwin reportedly said: "I never knew how good our songs were until I heard Ella Fitzgerald sing them.

VOA: special.2010.07.04

Here the Beatles sing one of those songs, "I Want to Hold Your Hand."

VOA: special.2010.07.30

Artists of all ages joined Seeger on stage to sing the folk and protest songs that he made popular, like this one, "If I Had a Hammer."

VOA: special.2009.05.22

(Music) "I am just rocking away, and then I get to sing the beautiful contemporary ballads, which I love so much.

VOA: standard.2009.11.03

Shakira must not even come through and sing that song.I am serious. She must not.It sucks."

VOA: standard.2010.05.05

"It's just not where I'm at right now in my life to seriously sing that.

VOA: standard.2009.09.03

And really,I mean, how is Shakira going to sing the African part of it?"

VOA: standard.2010.05.05