VIDEO: First Look - Clark Gregg Takes On Britney Spears' 'Toxic' on LIP SYNC BATTLE

Clark Gregg (Phil Coulson of "Marvel's Agents of S.H.I.E.L.D.") takes on his Dubsmash rival, Hayley Atwell (Peggy Carter of "Marvel's Agent Carter"), with a remake of Britney Spears' "Toxic" music video on this week's LIP SYNC BATTLE. Tune in Thursday April 21 @ 10p/9c to catch the action in full and get a first look below!

About LIP SYNC BATTLE: Entertainment icon and two-time GRAMMY Award-winner LL COOL J hosts SPIKETV's original series LIP SYNC BATTLE. The show airs Thursdays at 10/9c.

LIP SYNC BATTLE is already a huge viral sensation. Now SPIKE is taking it to the next level with its very own show, hosted by LL Cool J and with colorful commentary by social media maven and supermodel co-host, Chrissy Teigen.

Each episode will feature two A-list celebrities like you've never seen them before - synching their hearts out in hysterically epic performances. The mic is off, the battle is on!