Olivia Wilde has gone really wild in flaunting her cleavage through a shirtless Gucci tux ensemble for her 'Rush' movie premiere, USA Today reported Tuesday.

The 29-year-old actress decided to flaunt a simple Gucci tux without wearing any shirt or bra inside on the Monday night premiere of her race-car driver movie 'Rush' with co-star Chris Hemsworth in London.

"Beyond sexy - and so unexpected," Hollywood Life stated on Wilde's "fashion risk."

According to Huffington Post, Olivia Wilde sported a Gucci tuxedo blazer, sleek black pants, and simple black pumps matching it with matte red lipstick and statement earrings that gave her entire look a touch of pure glamour.

Hollywood Life added, "Although her bare chest was on full display and she showed off a lot of skin she looked sensational, sexy, and chic."

In the movie, Wilde plays the role of Suzy Miller, who wears elegant and glamorous Gucci '70s archive collection; thus, it is not surprising why Olivia opted to flaunt the said brand for the movie premiere.

The Cut commented earlier that Wilde's sexy look was indeed ""bold and memorable."

Meanwhile, the actress admitted earlier that has always dreamed of performing theater acts on stage, but added that she does not have enough time to put it in her hectic schedule.

"I have no time, but that's something I would love to do," Wilde told BANG Showbiz. "It's such a dream."

Olivia Wilde, who picked her stage name based on legendary playwright Oscar Wilde, also admitted that she "cannot sing to save my f-king life," but she can definitely dance based on her performance in 'Butter' with Ashley Greene.

Olivia Wilde has starred in a number of movies and TV series including: House, The O.C., In Time, Tron: Legacy, Cowboys & Aliens, Year One, The Incredible Burt Wonderstone, and Drinking Buddies.