‘Agents Of SHIELD’ Star Clark Gregg Channels Britney Spears For ‘Lip Sync Battle’ Against Another Marvel Star

It was a little weird for “Marvel’s Agents of S.H.I.E.L.D.” fans to see Coulson without a tie this season, so it might be jarring for those viewers to see this “Lip Sync Battle” clip. Clark Gregg is going full-Britney for the Spike competition show.

Gregg chose the Britney Spears classic “Toxic” for his battle, and it seems like a fitting choice. He plays a spy on the ABC drama, and Brit did the same in her 2003 music video. Of all of the costumes he could have chosen, Gregg went with the iconic flight attendant look.

Watch the “Lip Sync Battle” sneak-peek video below:

His “Lip Sync Battle” opponent is none other than “Marvel’s Agent Carter” star Hayley Atwell. The actress, who plays Peggy Carter in both the TV show and “Captain America” movies, has a well-documented lip sync rivalry with Gregg. The Marvel stars started a war using the Dubsmash app during San Diego Comic-Con last year, and they eventually turned it into a c-harity competition. The “Agent Carter” cast won (and raised $79,259 for Stomp Out Bullying), but Gregg is obviously going all out to win the title back for the “Agents of S.H.I.E.L.D” cast.

“An opportunity presented itself to settle a very personal score. Once and for all. To the death,” Gregg told viewers in another video. Watch him and Atwell announce their battle below:

Gregg’s performance is obviously pretty great, but don’t count out Atwell just yet. She has been able to practice her lip syncing and choreography on her show. “Agent Carter” Season 2 had a big musical numberin a dream sequence. Will the actress be able to win over the “Lip Sync Battle” crowd? It looks like she’ll be just as extravagant as Gregg. Photos f-rom her performance hint that she’ll be channeling another pop superstar, Lady Gaga.

It looks like Hayley Atwell chose a Lady Gaga song for her “Lip Sync Battle” appearance.PHOTO: SPIKE

“Lip Sync Battle” Season 2, episode 13 airs Thursday, April 21, at 10 p.m. EDT on Spike.