Incubus - A Certain Shade of Green
"A Certain Shade of Green," a song from the Incubus album S.C.I.E.N.C.E., references 2012 in the following lines: Are you gonna stand around till 2012 A.D.? / What are you waiting for, a certain shade of green?. December 21, 2012 also appears to be the date when the video for the song "Warning" is supposed to take place.