Just weeks after bandmate Dougie became I'm A Celebrity royalty, hottie Harry lifted the famous glitterball in the Strictly final at the Blackpool Tower.
The drummer fought off tough competition from Waterloo Road actress Chelsee Healey and Aussie soap star Jason Donovan, who came second and third respectively.
Harry got the biggest share of the public vote after winning the hearts of the nation with his smooth moves.
And tonight notoriously harsh judge Craig admitted he was smitten too.
After his final dance of the night - the Argentinian tango - which saw him get a perfect four 10s, Craig told him: "Like the nation I have fallen in love with you too."
He had earlier opened the show with a perfect ballroom dance to 'Don't Get Me Wrong' with another set of four 10s.
And his showdance to 'Sweet Balls of Fire' ended with him performing the drums to pay tribute to his day job as the McFly drummer.
Despite telling Yahoo! omg! ahead of the weekend he wasn't going to get topless in the final, he made a lot of people very happy by flashing his chest after riding in on a chariot, gladiator-style, at the opening of the show.
His bandmate Tom Fletcher tweeted: "I can't thank you guys enough for all the support you've shown Harry. It's incredible. He truly deserves it and we are all SO proud!!"
Despite getting the highest score of the three (four 10s) for his showdance with partner Kristina Rihanoff, Jason Donovan was voted off in third place.
And Chelsee Healey, who was the only finalist not to get a perfect score for any of her dances tonight, ended up runner-up after rocking a Beyonce-style number in her own showdance.