At first glance, Ora's lilac tweed jacket-and-skirt combo makes her seem ready for a business meeting.
But the 25-year-old songstress is well known for her bold fashion choices, and this outfit is no exception -- she made a daring move, pairing the otherwise prim suit with a black fishnet long-sleeve shirt and exposed lace bra.
Ora didn't go light on the accessories either, completing her "Like a Virgin" look with a studded leather fiddler hat, red-framed glasses, chunky gold medallion necklace, over-sized gold hoops, and black military boots.
Not only that, but she was even sporting a new 'do -- she chopped off her long locks in favor of a wavy bob.
Ora had a great time inside the venue as well, Snapchatting herself singing along to some of Spears' biggest hits, plus shots of the pop star pole dancing while performing "Slave 4 U." Not bad for Spears' first concert outside of Las Vegas in five years, eh?
The "RIP" singer wasn't the only famous Spears fan in the audience at the Camden Roundhouse -- London It Girls Georgia May Jagger, Lara Stone, and Daisy Lowe were there, as well as a number of British actresses and models.
Ora's see-through top may have been inspired by a recent photo spread in Vanity Fair Italia. On Wednesday, she shared outtakes from the shoot with her 10.3 million Instagram followers, all of which showed off the crooner's toned physique and penchant for black bras.