What are you favorite retro and doo wop hits?

I have always loved old school rock and roll and doo wop, and I have been broadening my horizons lately and listening to more and more music of this variety. Everything from Marty Robbins to Roy Orbison to the Marcels and the Ronettes is fair game to me.

So tell me, Fluther, what are your favorite retro hits of the doo wop, early rock, or even country or swing variety? Links are always appreciated.