Lady Gaga Surprises a London Bar With 'Perfect Illusion' Performance

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It wasn’t an illusion for a number of lucky bar-goers on Friday night -- Lady Gaga was really there.

The 30-year-old singer hit up a local bar in London called The Moth for a little impromptu performance of her new single, "Perfect Illusion," and absolutely slayed!

RELATED: Lady Gaga Flaunts Serious Underboob, Rocks Daisy Dukes in Barely-There Outfit in London

The singer jumped on stage wearing the same cheek-bearing silver shorts and a matching crop top she wore in a promo shot for her new single on Instagram, featuring a whole lot of abs and little under-boob.

At several points throughout the performance which fans are calling "epic" and "crazy," Gaga's head banging and ponytail swinging revealed both of her breasts, which were luckily covered with tape.

See the performance below.

RELATED: Lady Gaga's Pop Music Comeback: Everything We Know About 'Perfect Illusion'

Gaga’s bar gig is believed to be her first performance of "Perfect Illusion," which she released on Thursday.

See more on Gaga's first pop single in three years in the video below.