The Xtra Factor host is expected to be joined by the likes of Kermit the Frog and Miss Piggy for his rendition of 'Dance With Me Tonight' on Sunday's results show.
Murs promised Digital Spy earlier this week that he had "a very big surprise" in store for his performance.
Watch Olly Murs in the video for 'Dance With Me Tonight' below:
"Olly had been talking about a production that is bigger than anything ever seen before," an insider commented to The Sun. "He is such a laid-back guy that nobody could imagine what all the fuss could be about. His only prop is usually just a hat."
Murs's special guests have been recruited to promote upcoming film The Muppets Movie, which is currently playing in US cinemas and will open in the UK on February 10, 2012.
The film boasts an all-star cast including Jason Segel, Amy Adams, Katy Perry, Ricky Gervais and Jack Black.
Watch Digital Spy interview Olly Murs below: