'Tonight': Best Friend Challenge With Demi Lovato - NBC 6 South Florida

    'Tonight': Best Friend Challenge With Demi Lovato

    Jimmy Fallon and Demi Lovato take turns asking questions about each other and guessing the answers. (Published Tuesday, Sep 19, 2017) Jimmy Fallon and Demi Lovato take turns asking questions about each other and guessing the answers. See More