Awesomesam07 got it right! It was Find the Pieces by TryHardNinja and CaptainSparklez because they both worked on it.

Stay with me, cause I don't need no
Anybody
Please don't go
Cause I don't want to be the one left alone
Lay with me, course I don't need no anybody
Please hold on
Cause everything without you seems to go
Wrong

3..2..1 GUESS!!