VIDEO: Lady Gaga Joins U2 on Stage in Las Vegas

Lady Gaga joined U2 on stage at the Sphere in Las Vegas Wednesday night for a cameo that lasted 16 minutes and freaked out all 18K unsuspecting audience members.

Bono, 63, introduced the 37-year-old superstar by explaining to the audience that he tried to write his 1989 hit, “All I Want is You,” “from a woman’s point of view.”

I’ve sung it to women, but I’ve never sung it with a woman,” the singer said. “We’re going to do just that tonight. Not just any woman — the most audacious, vivacious woman in any room she’s ever in.”

Gaga strode out to thunderous applause in a black leather biker jacket, black platform heels, and Bono-esque black shades. She hugged Bono before they launched into the tune.

Next, the duo segued into a cover of “Shallow,” Gaga and Bradley Cooper’s Oscar-winning hit from the soundtrack to “A Star is Born.”

Finally, Gaga belted lines from U2’s 1987 signature song, “I Still Haven’t Found What I’m Looking For,” which included a coda from Primal Scream’s  1991 hit “Movin’ On Up.”

Gaga joked with the audience between songs, telling them, “I was in the desert, and I ran into you f—ing guys.” During Gaga’s lines, Bono cheered her on with exultations, including “Take it to the Elvis chapel!” and “You are the vestal virgin of Las Vegas!”

Check out the whole set below:

History Repeats

This wasn’t Gaga’s first rodeo with the Irish icons. In 2015, she joined them at New York’s Madison Square Garden for a run through “Ordinary Love,” U2’s contribution to the soundtrack for the 2013 Nelson Mandela biopic “Mandela: Long Walk To Freedom.”

Gaga wrapped up the latest leg of her long-running Vegas residency, “Jazz & Piano,” at the Dolby Live at Park MGM on October 5.

U2 recently extended its “U2:UV Achtung Baby” Las Vegas residency through February 18.