See Jimmy Fallon and Kelly Clarkson Harmonize the History of Duets

'Tonight Show' host and singer go from "I Got You Babe" to "Endless Love" and every duet in-between

Spurred by Kelly Clarkson's recent comments that she has been unable to find a suitable duet partner, Jimmy Fallon offered his services on last night's The Tonight Show. Together, the couple sang a dozen duets in a four-minute mega-medley. Much like Fallon's ongoing History of Rap series with Justin Timberlake, the late-night host and the "Heartbeat Song" singer take a similar journey through five decades of chart-topping duets, kicking things off with Sonny and Cher's "I Got You Babe" before bringing it on home with Lionel Richie and Diana Ross' "Endless Love."

Along the way, Fallon and Clarkson also sing snippets of famous duets like the Human League's "Don't You Want Me," Charles & Inez Foxx's "Mockingbird," Elton John and Kiki Dee's "Don't Go Breakin' My Heart," Aaron Neville and Linda Ronstadt's "Don't Know Much" (with Fallon dressing up as Neville, right down to the prominent birthmark), Stevie Nicks and Tom Petty's "Stop Draggin' My Heart Around," Jennifer Warnes and Joe Cocker's "Up Where We Belong" and, most important, Paula Abdul and MC Skat Kat's "Opposites Attract."

The comment Fallon is referring to at the beginning of the bit is based on something Clarkson recently told BBC Radio 1 regarding the lack of guests on her new album Piece by Piece. "I honestly would collaborate with a lot of people, but everyone usually says no," she said. "I'm not kidding you. I have legitimately asked several people that I'm not going to call out, and that's cool, but I don't know." The singer later tweeted that she was just joking about not being able to find duet partners, and that John Legend would feature on her Piece by Piece track "Run Run Run."