MSNBC Live with Tamron Hall 05/21/15

Nick Cannon holds 24-hour dance marathon for Red Nose Day

In honor of ‘Red Nose Day,’ America’s Got Talent host Nick Cannon is holding a 24 hour dance-a-thon to raise money for children’s charities. He joins Tamron Hall live from the NBC Experience Store at 30 Rockefeller Plaza. ... more Duration: {{video.duration.momentjs}}