Legend and the Roots recorded Arcade Fire's anthem for their LP Wake Up!, but it didn't make the cut. This live version suggests why: Legend's vocals miss Win Butler's cracked frailty, and the groove refuses to swing. But it's cool to hear the song becoming a 21st-century standard.

Video: The Roots and John Legend on Their Soul LP 'Wake Up'

“Tonight's the Night”

The lead cut and title track from this girl group's debut album, "Tonight's the Night" was written by 19-year-old bandmember Shirley Owens, who sings lead, and producer Luther Dixon. The band from Passaic, New Jersey met in high school, first calling themselves the Pequellos. The song's frank thoughts about sexual and emotional surrender was racy for the time, but that didn't stop the Chiffons from cutting a similar version immediately after the original came out. "We were the first female group to write some of our own material," band member Beverly Lee recalls. "We did have some say-so in our writing."