The 'Mistletoe' singer unveiled his duet with Will Smith's 13-year-old son on Twitter at midnight to ring in the New Year.
Early yesterday (December 31), Bieber posted on the social networking website: "u know what..to say thank you for an amazing 2011, me and @officialjaden are releasing a #NewYears song at Midnight. #COUNTDOWN (sic)."
At midnight, he wrote: "thank you for 2011, lets have a better 2012! #happynewyear (sic)." A video (above) featuring the song in question, titled 'Happy New Year', was attached to the message.
Bieber marked the New Year in New York's Times Square by covering The Beatles' 'Let It Be' for Dick Clark's New Year's Rockin' Eve.
The singer was joined by Lady GaGa, LMFAO, Drake, Cee Lo Green, Pitbull and Florence + the Machine on the lineup.