Nick Carter, Howie Dorough, Brian Littrell, AJ McLean and Kevin Richardson appeared in full costume during the 2018 Backstreet Boys Cruise to Turks and Caicos show earlier this week, reports Entertainment Tonight.
Thousands of fans on board the Carnival Sensation cheered as the guys hit the stage with Nick Carter as Emma Bunton, Howie Dorough as Geri Halliwell, Kevin Richardson as Victoria Beckham, AJ McLean as Melanie Brown and Brian Littrell as Melanie Chisholm.
The boys even performed on the popular Spice Girls song 'Wannabe' and shared a photograph of themselves on Instagram.
They captioned the picture: "Celebrating all of the girl power that's kept us going for 25 years.