Any suggestions?

[Infidelitas]

Does anyone know of any 50's artists with this sort of sound? http://www.youtube.com/watch?v=-xDwq8NM9G4

Thanks in advance?

[Aves]

Well I can't watch the video, due to copyright laws.

[Contra]

I can watch the video, and btw, I really liked that sound. :)
Well, I'm not very familiar with 50's music, but I did a search and you should try out The Diamonds, The Silhouettes, The Clovers and The Skyliners.

[Sage]

*siiiiiiiiiiiiiiiiiigh* (http://www.last.fm/home)