The Britain's Got Talent judges unleash their musical side for the first episode of the brand new series.
Singer and former Mis-Teeq star Alesha effortlessly gets into the zone as she takes to the stage to perform Skepta's 'Shut Down'.
Meanwhile, comedian David performs Missy Elliott's 'Work It' and decides to take on the challenge of Adele's 'Hello'.
Who will win in the ultimate music battle? Watch the three videos below:
The UK version is based on the hit show which airs in the US on Spike. It sees two well-known celebrities go head-to-head with show-stopping routines and smash hit songs in front of a studio audience.
Mel B and Professor Green will co-host Lip Sync Battle UK, and of course, keep the proceedings in order while the celebrity guests battle it out.
Lip Sync Battle UK hits Channel 5 on Friday 8 January at 10pm.
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