Sofia Vergara Celebrates Joe Manganiello's 40th Birthday With a Rockin' 'Joechella' Bash - See the Pics!

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Happy birthday, Joe Manganiello!

The Magic Mike XXL star turned 40 on Dec. 28, kicking off his late birthday festivities Friday night at the W Hollywood. Along with his wife, Sofia Vergara, the two later took to Instagram to share highlights from Manganiello's rockstar-themed "Joechella" bash.

WATCH: Sofia Vergara Cozies Up With Husband Joe Manganiello at Her Birthday Dinner

"Thanks to everyone that made it out tonight!" Manganiello captioned a pic of the party invite, modeled after the artwork from the Coachella Valley Music and Arts Festival. "And thank you @djhapa & @steelpantherkicksass for bringing down the house!!! #JOECHELLA 40."

He also showed off his birthday cake -- a bright red, black-and-white striped Van Halen guitar!

An eyewitness tells ET, "[Dennis] Rodman got on stage for a couple of minutes and sang. Fergie danced with Sofia [Vergara] for a while. Joe [Manganiello] got up on stage later in the party and sang." At one point, the guest of honor even sang Backstreet Boys' "I Want It That Way" with Michael Starr from Steel Panther.

And according to Starr, Vergara hopped on the mic, too, belting out some Bon Jovi. "Sofia, you sang Bon Jovi great," he gushed. "Fergie chickened out lol."

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Vergara looked stunning all night, sporting a sweetheart jumpsuit and sparkly choker, while her beau wore a Guns N’ Roses T-shirt and distressed jeans.

"Rockstars!!!" she captioned a pic of Starr and singer Fergie in action.

And what would a night out be without snapping pics inside a photo booth?

The eyewitness also observed Manganiello and Vergara share several cute moments throughout the night. "They danced together, kissed and held hands," the eyewitness explained. "It's clear they're in love." Others in attendance included Josh Duhamel, Pee Wee Herman, Jesse Tyler Ferguson and Eric Stonestreet. See more highlights from the bash below!

PHOTOS: Sofia Vergara and Joe Manganiello Enjoy Romantic Turks and Caicos Getaway

WATCH: Sofia Vergara Wishes 'Wonderful Husband' Joe Manganiello a Happy 40th Birthday