Jones-Bishop revealed he would be leaving Headingly-Carnegie last week and the announcement sparked a scramble of top clubs vying for his signature.
Having already signed Kiwi flyer Kevin Locke for next season Head Coach Iestyn Harris and owner Marwan Koukash have further signalled their intent by adding the 25-year-old Rhinos star to their ranks after he turned down a deal to stay in Yorkshire.
Jones-Bishop, who can play wing or fullback has appeared in two Grand Finals for Leeds and has scored 53 tries in 76 appearances, including seven in just five games this campaign.
Iestyn Harris said: “Ben Jones-Bishop is somebody who I’ve admired over the past few years and I don’t think I’m on my own in saying that. He will be another terrific signing for this club. We are making signings that will add an extra dimension next season and we look forward to working with him when he joins us after the current season finishes.”
Owner Marwan Koukash said: “This is another statement from this Club that we are serious about winning trophies. Ben Jones-Bishop has the potential to be one of the most exciting players in the game and for the next three seasons our fans will see exactly why. He is a player who can’t stop scoring tries and next year he will score them as a Red Devil.
“We are signing talent at the peak of their careers. Quality players want to come and play for the Red Devils and we will continue to do everything possible to turn this club into a rugby league powerhouse.”