Marvin, 31, and 27-year-old Rochelle were pictured on the red carpet at the world premiere of Bridget Jones's Baby and they looked every inch the perfect couple.
Posing for photographers in London's Leicester Square, Marvin proudly placed his arm around his wife as she sizzled in front of the lens.
Wearing a cute monochrome dress, featuring a pretty feather print, Rochelle upped the sex appeal with a pair of knee-high, lace-up Louboutin heels and wore her hair slightly tousled.
Marvin, meanwhile, coordinated with his wife in a black and white outfit, adding a touch of cool with a maroon bomber jacket.
Former JLS star Marvin married Saturdays singer Rochelle in 2012 following a romantic proposal in the Maldives. In May 2013, the couple welcomed their first child together, a daughter called Alaia-Mai.
In the third Bridget Jones film, which the pair are watching on the big screen, Bridget discovers she is pregnant. Could this give Marvin and Rochelle ideas for Baby No 2?