Watch the pair strip down to their boxers in a spoof for 'The Late Late Show'...
Pixie Lott and Olly Murs to perform at Marvin and Rochelle's wedding
The acts are reportedly all on the guest list for Humes and Wiseman's big day and could make an appearance on stage.
The 'Heart Skips A Beat' singer and the fellow British stars are reportedly on the guest list for the couple's big day and according to The Sun newspaper, will all make an appearance on stage at the event.
The pair have been engaged since New Year's Eve after announcing the news on Twitter during their winter vacation together.
Marvin has recently returned from Las Vegas where he was joined by his 'One Shot' band mates and close friends for his stag do in the Nevada desert.
Meanwhile, Rochelle and Marvin were last week spotted outside 10 Downing Street as they visit the Prime Minister's home for a celebrity charity event.
With Taylor Swift bumping into her lookalike on Tumblr, we've found some other fans who look A LOT like celebrities...
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