Will Smith performs 'Summertime' on Colbert
Amber Alert issued for Montana teen
TPP May Fail if Renegotiated, Singapore Warns US
Investigation into blast at Vernon home to resume Saturday
Boko Haram's new leader is son of executed founder, insider says
Obama declares Trump 'unfit' for presidency
Bradley Cooper, Todd Phillips Making ISIS Miniseries for HBO
Teaser Trailer for Christopher Nolan's 'Dunkirk' Debuts
Katy Perry Releases Empowering Olympic Anthem,