Sam Pepper has become the new Big Brother favourite - despite only being in the show for two weeks.
His odds have been slashed from 7-1 to 13-8 following a huge £10,000 single bet placed on the graffiti artist to win the last series of the Channel 4 reality show.
As a result the 21-year-old has overtaken long-time favourite Corin to take the 13-8 lead. Corin is 2-1 and Josie is 11-4.
In Friday's eviction, Jo is the 2-7 favourite to get the boot, Dave is 5-1 while Sam and JJ appear safe at 7-1 and 12-1 respectively, William Hill said.
"Mr Pepper has really added a bit of spice to the house in the past two weeks and he is by far the best backed housemate," said Hill's spokesman Joe Chilly.