Music LISTEN: Bieber's 'Wait For a Minute' Song Published 7:30 AM PDT, September 13, 2013 Getty Images The wait is over for Justin Bieber's newest song. The 19-year-old Baby singer's new track Wait For a Minute featuring Tyga was shared on the rapper's YouTube channel late Thursday night, Sept 12. RELATED PICS: InstaGrab: What Are the Stars Sharing? What do you think of the new song? Play music critic in the comments.