The 38-year-old - husband to Rochelle Humes - is part of the roster of relief presenters on This Morning and also hosts BBC One's primetime gameshow The Hit List alongside his wife.
The lineup for the new series of I'm A Celeb is on the verge of being announced ahead of the show starting in a few weeks, and The Sun says that Humes is likely to be among them.
"Marvin would be a brilliant signing," a show source told the newspaper. "Not only is he known to fans of The X Factor and fans of JLS, but the audience for The Hit List and This Morning spans from kids right through older viewers.
"He'll have lots of showbiz stories to tell, too, from his 15 years in the limelight. The fact he's remained a bit of a pin-up doesn't hurt, either, and bosses hope he'll make use of the jungle shower!"
Other names linked with the show include politician-turned-broadcaster Nigel Farage, presenting legend Denise van Outen, jockey Frankie Dettori, Made In Chelsea's Sam Thompson, This Morning host Josie Gibson, Hollyoaks veteran Nick Pickard, Coronation Street's Alan Halsall and First Dates maitre d' Fred Sirieix. body check tags ::