Round one of the second Dubsmash War between Agents of S.H.I.E.L.D. and Agent Carter began today, with Hayley Atwell taking the first emphatic swing.

For the first video of the tournament, Atwell has donned the iconic blue suit from season 1 of Agent Carter, while lip-syncing to Beyonce’s classic, “All the Single Ladies.” The blue suit costume is an appropriate choice for the video, as it was used to great effect by Clark Gregg in the first Dubsmash War – though the actor did eventually concede defeat in the same getup.

But Atwell isn’t the only one wearing Peggy Carter’s classic threads. The actress is joined by no less a celebrity than Miss Piggy, star of the upcoming ABC series The Muppets, who is also rocking the blue suit and red hat. Atwell’s Agent Carter costar James D’Arcy is also wearing the suit, though he seems hilariously bewildered at finding himself so attired… and does not seem to identify with the “Single Ladies” anthem.

Miss Piggy, however, is much more enthusiastic. The pig, who recently shocked the entertainment world with the news that she and long-time love interest Kermit the Frog had split, is as confident as ever while lip-syncing with Atwell. As Piggy notes on Twitter, her presence emphatically raises the stakes of the second Dubsmash War.

While the original Dubsmash War began in impromptu fashion at San Diego Comic-Con, its second incarnation is much more carefully orchestrated. Atwell and D’Arcy are coordinating with Agents of S.H.I.E.L.D.‘s Clark Gregg and Chloe Bennet to play out the three-round tournament for charity.

The winner of Dubsmash War II will be chosen by fans, who can now vote with their dollars at Crowdrise.com/dubsmashwars. The monies raised will go to the charities Stomp Out Bullying and St. Jude’s Children’s Research Hospital – and the losing side will have to eat crow in a Dubsmash video orchestrated by the winners.

Team S.H.I.E.L.D.’s first entry is still “Coming Soon,” but there’s no question that Atwell and Miss Piggy have set the bar very high for the second Dubsmash War.

What do you think of ‘Agent Carter’s first volley in Dubsmash War II?