Agents of S.H.I.E.LD. Star Clark Gregg is out to outperform his lip sync rival and fellow Marvel actor, Hayley Atwell (Agent Carter) on Spike TV’s Thursday performance of his the Britney Spears’ hit ‘Toxic’. The two were engaged in a well-documented rivalry which started off in a dubmash video competition for charity.
Tom Cruise and Jimmy Fallon had fun together in their newest lip sync battle.
