Justin Bieber Live Tweets on ‘Letterman’

The Canadian singer displays his smart phone skills during show.

February 1, 2011 7:14pm

Justin Bieber multitasked work with technology while being interviewed on the Late Show With David Letterman Monday night.

When asked by Letterman if he used “the Twitter device,” the Candian pop singer quickly sent out a message to his nearly 7 million Twitter followers: “I’m just hanging with my boy Dave.”

Beiber is currently promoting his 3D movie Justin Bieber: Never Say Never, which THR‘s Shirley Halperin writes will convert all audience members into fans. The film is out Feb. 11.