Olivia Wilde goes shirtless in a tux

What do you think of Olivia Wilde's red carpet look?

The star, 29, opted for a tux — no shirt and no bra — Monday night for the London premiere of race-car driver movie Rush, starring Wilde and Chris Hemsworth.

The Gucci ensemble allowed her to show off a lot of skin. And most of the Web is giving it a big thumbs up.

Hollywood Life gives the "fashion risk" a rave review, calling it "beyond sexy — and so unexpected."

The Cut calls it "bold and memorable."

Huffington Post calls it "jaw-dropping," adding that it's Wilde's sexiest look yet.

Your thoughts?