Double threats: Musicians who act

POSTED: 1:56 AM Sep 30 2013   UPDATED: 2:00 AM Sep 30 2013
VMAs - Justin Timberlake blurb

With pop star, and sometimes actor, Justin Timberlake releasing the second half of his "The 20/20 Experience" album on Monday, join us for a look at other singing stars who are double threats.