They faced off in The Devil Wears Prada and now they're back for a lip sync battle royale. This week on Lip Sync Battle: Emily Blunt and Anne Hathaway!

She may be pitch perfect, but can Anna Kendrick beat the King of Lip Sync, John Kransinski?

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The host of The Tonight Show Jimmy Fallon gets in the ring with professional actor, producer and wrestler Dwayne Johnson.

It's a battle of the foreigners when English-born Stephen Merchant challenges Swedish beauty Malin Akerman. Who will defend their country and take home the honor? Find out.

In part two of the season finale of Lip Sync Battle, Terrence Howard vs. Taraji P. Henson battle it out with the help of some guests.

Professional dancer Derek Hough lip syncs against his sister, professional dancer Julianne Hough. Watch them settle a family rivalry in this lip sync blood match.

In part one of the season finale of Lip Sync Battle, the stars of Empire take the music business from the screen to the stage. It's Terrence Howard vs. Taraji P. Henson.

Teen stars for the win! Zoey 101 star Victoria Justice competes against Faking It's Gregg Sulkin. But which fake which walk away with the belt? Find out!

Iron Mike Tyson takes on former American football player and actor Terry Crews in battle. But brawn won't help them in this match. It's a Lip Sync Battle War of the Roses!

Sitcom stars Alison Brie and Will Arnett put their acting abilities to good use in this career-defining lip sync clash.

The king and queen of comedy go to war in a battle for the lip sync crown. Queen Latifah and Marlon Wayans release their vocal armies!

Each took home an Oscar, but who will snag coveted honor of the Lip Sync Battle Champion? Soul singer John Legend and hip hop star Common go from collaborators to competitors in this epic battle.

Justin Bieber tries his lip sync luck against American former football and baseball player, Deion Sanders. Will this match be a Bieber beatdown?

Television personalities go toe to toe. Bravo's Andy Cohen challenges NBC's Willie Geist to a silent singing showdown.

Bandmates, friends and now...competitors! Hip hop legends Salt-N-Pepa go to battle for lip sync glory.

Love is in the air! Iggy Azalea battles Los Angeles Lakers basketball player boyfriend Nick Young. Will hearts be broken when the belt's awarded? Find out!

The stars of Broad City battle like only two New York best friends can. It's Abbi Jacobson vs. Ilana Glazer!

Two morning show hosts put down the coffee and pick up the mic! It's Michael Strahan vs. Hoda Kotb in a fierce talk show throw down.

It's a marital showdown when Channing Tatum takes on his wife, Jenna Dewan-Tatum.

What happens when a red-hot comedian squares off against an A-list actress? Let's find out.

The stars of "Black-ish" square off in an epic battle.

It's a clash of Hollywood heavyweights when Josh Gad & Kaley Cuoco square off. Will Josh's Trump-style hair be enough to knock off the "Big Bang Theory" actress?

It's a case of sports vs. Hollywood when Nina Dobrev squares off with quarterback sensation Tim Tebow. Who will take home the belt?

Two of Hollywood's hottest actresses are facing off in the LSB arena, but only one can take home the belt. Who will it be?