Michelle goes head-to-head with her ‘Ordinary Lies’ co-star Jason Manford, and pulls out all the stops to ensure she impresses the studio audience.
Later in the episode, she undergoes a punk-inspired makeover for a rendition of Kings Of Leon’s ‘Sex On Fire’, while Jason will give his spin on Cee-Lo Green’s ‘Forget You’.
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However, Michelle isn’t the only star to have outed herself as a Spice Girls-lover recently.
Adele - who has never been shy about her love of the '90s pop act in the past - is the latest celebrity to join James Corden for a ride around the block in his series of Carpool Karaoke sketches, and the two belted out a Spice Girls hit.
In addition to her tracks ‘Hello’, ‘Rolling In The Deep’ and ‘Someone Like You’, she and James can be heard singing along to ‘Wannabe’, as they ride around London together.
Last week’s 'Lip Sync Battle UK' saw David Walliams taking on his fellow ‘Britain’s Got Talent’ judge Alesha Dixon, winning particular praise from viewers for his unique take on Adele’s ‘Hello’.
Stars appearing later in the series are ‘Hollyoaks’ actress Jorgie Porter, in addition to comedians Vic Reeves and Johnny Vegas.
See Michelle’s full performance when ‘Lip Sync Battle UK’ returns to screens on Friday night, at 10pm on Channel 5.