But I have to hand it to Justin Bieber.  I'm not a huge Bieber fan, by any means.  But I've listened to his music and I've listened to him on live recordings, and the kid's got talent.  
There's a chord progression that has been used FOREVER and it never fails: G-Em-C-D
Songs that use this chord progression include:
"Stand By Me" - Ben E. King
"This Magic Moment" - The Drifters
"Duke Of Earl" - Gene Chandler
"Earth Angel" - The Penguins
"Teenager In Love" - The Hit Crew
"Beautiful Girls" - Sean Kingston
"Canon in D" - Pachelbel
AND
 "Baby" - Justin Bieber
Millions of dollars and girls have been won through these four simple chords.  So I decided to do my own acoustic version of Justin Bieber's "Baby".  Here it is, hope you enjoy it:
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