Doo-Wop

OK, a little history coming your way: The first time the term "doo-wop" appeared in print was in the Chicago Defender in '61. D.J. Gus Gossert is widely credited with coining the phrase. Early "doo-wop" variation uses include "Good Loving" by the Clovers ('53), "Never" by The Dundees aka The Calvanes ('54) and "Mary Lee" by the Rainbows ('55). Name the first two songs to actually use "doo-wop" in their refrains.
http://www.youtube.com/watch?v=5YVO8OxBipU
http://www.youtube.com/watch?v=fBT3oDMCWpI
http://www.youtube.com/watch?v=x3RomfvH1sQ
http://www.youtube.com/watch?v=3G_r0leVIZc

Yesterday's answer: "Slow Down". Never get tired of listening to The Young Rascals' self-titled debut album. A classic!
http://www.youtube.com/watch?v=Xd8nnkjrQHw
http://www.youtube.com/watch?v=W8sbpzNtuzI&feature=related
http://www.youtube.com/watch?v=gs6oc7hR6vM