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‘Lip Sync Battle’ Preview: Gregg Sulkin Whirls and Grooves to ‘Milkshake’ (Video)

The actor faces off against fellow MTV star Victoria Justice on Thursday’s episode

Gregg Sulkin will hit the “Lip Sync Battle” stage on Thursday to perform Kelis’ 2003 hit “Milkshake” while donning a wig — but not a shirt.

His shirt torn off in the first few seconds of the clip, the actor gives his competitor Victoria Justice a lap dance and busts out moves while whipping out an actual milkshake as a prop.

The audience drinks up the shirtless “Pretty Little Liars” star, who will battle Justice on Thursday night’s episode of the show. It looks like both MTV actors are throwing it way back to the early 2000s — Justice will perform Nelly’s 2002 hit “Hot in Herre.”

“Lip Sync Battle” has continued to be ratings powerhouse for Spike, averaging 2.9 million viewers per episode and a 1.9 rating in the 18-49 demographic.

“Lip Sync Battle,” which is co-hosted by LL Cool J, is produced by John KrasinskiStephen Merchant, Casey Patterson, Jay Peterson and Rick Schwartz. Beth McCarthy-Miller of “Saturday Night Live” serves as director.

“Lip Sync Battle” airs Thursdays at 10:00pm ET/PT on Spike.

Watch the video.