Pitbull & Ne-Yo
Along with Nayer, the gentlemen busted out "Give Me Everything" before it became the hottest jam of the summer.
Selena Gomez
The Disney princess made the scene with her band...er...the Scene!
The Black Eyed Peas
Which song of theirs isn't dance-party approved?
Hanson
The fraternal trio "MMMBop"-ed along.
Taylor Swift
The Fearless singer showed up to tell a "Love Story" and returned a couple seasons later for "Mine" and "White Horse."
Miley Cyrus
Having made her debut on this stage with dad Billy Ray Cyrus, the teen queen returned solo to prove she "Can't Be Tamed."
Train
Everyone was onboard with "Soul Sister" and "Drops of Jupiter."
Susan Boyle
The Britain's Got Talent phenom "Dreamed a Dream" on these shores, too.
Melissa Etheridge
The veteran pop star offered up the modern classic "Come to My Window."
Delta Goodrem & Michael Bolton
Bolton managed to put his ego lackluster appearance as a contestant aside, and he brought Nick Jonas' gal-pal along for the musical ride!
Jason Derülo
He performed "In My Head" and "Georgia on My Mind." Who knew the pop-R&B star was so cerebral?!
Sara Evans
Another former contestant, who dropped out midseason in the midst of marital drama, made a triumphant return doing what she does best.
Whitney Houston
If the diva wanted to dance with somebody, she went to the right place.
Goo Goo Dolls
Broadway must have been dark that night, because the Goo Goos were at DWTS.
Shakira
The Colombian temptress made the crowd go "Loca."
Demi Lovato
Is there a fresh up-and-comer who hasn't been on this stage? The former Sonny With a Chance Star brought "La La Land" to the ballroom.
Joss Stone
The British beauty wore shoes for this one.
Janelle Monáe
Lucky for the stars that they don't have to dance on a "Tightrope."
Etta James
The jazz and soul icon sang "At Last," duh.
Jewel
The singer's hubby, Ty Murray, was a semifinalist and fan favorite, but she had to drop out before the rodeo even began with a stress fracture.
Julianne Hough
The two-time DWTS champ gave "My Hallelujah Song" a whirl in front of some familiar faces.
Enrique Iglesias
We bet he likes how all the lady pros move on the floor.
Alicia Keys
The Grammy winner has made multiple appearances, because "No One" does it quite like Keys.
Norah Jones
She sweetly serenaded the audience with "Come Away With Me" and a newer tune, "It's Gonna Be."