Jimmy Fallon really knows what we want to see each night, or on Youtube the next morning, as he continues to show off his skills as a singer, dancer, impersonator and all around amazing entertainer. He calls on Invincible pop singer and first ever American Idol winner, Kelly Clarkson, to be his duets partner in crime as they sing everything from Sonny & Cher to Joe Cocker & Jennifer Warnes.

He even takes a moment to get into his Aaron Neville impression which was amusing but more funny than dead on accurate. We definitely didn't mind as this video has a lot of replay value plus check out Kelly's sweet dance moves. Also, if you keep your eye on The Roots crew, you can see them losing it in the background with lol's! Hit play, enjoy and see how many songs you can name.

Loved it! How many songs did you know or were you too busy enjoying the soothing sounds of Kelly & Jimmy?

Here's a complete list of songs from this Tonight Show History of Duets :

Sonny and Cher's "I Got You Babe"

Carly Simon and James Taylor's "Mockingbird"

Dolly Parton and Kenny Rogers' "Island in the Streams"

The Human League's "Don't You Want Me"

Stevie Nicks and Tom Petty's "Stop Draggin' My Heart Around"

Elton John and Kiki Dee's "Don't Go Breaking My Heart"

Joe Cocker and Jennifer Warnes' "Love Lifts Us Up Where We Belong"

Linda Ronstadt and Aaron Neville's "Don't Know Much"

Paula Abdul and The Wild Pair's "Opposites Attract"

Pink and Nate Ruess' "Just Give Me A Reason"

Diana Ross and Lionel Richie's "Endless Love"

Kelly also tells the story about how she wrote her new song "Piece by Piece" along with a web exclusive performance of it FTW:

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