“The Tonight Show” just went all “From Justin Jimmy to Kelly.”

Singer Kelly Clarkson made headlines recently when she said no one wanted to do duets with her. Well, you can pretty much forget about that because Clarkson joined host Jimmy Fallon on Monday to sing some of the greatest duets ever.

In “History of Duets,” the pair covered everything from Sonny & Cher’s “I Got You Babe” to Diana Ross & Lionel Richie’s “Endless Love.”

Fallon’s other “History” videos have included rapping with Justin Timberlake and hip-hop dancing with Will Smith. Whether you think this new version takes two steps forward or two steps back, as Paula Abdul and MC Skat Kat would say, it comes together ‘cuz “Opposites Attract.”

“The Tonight Show Starring Jimmy Fallon” airs weeknights at 11:35 p.m. ET on NBC.