The 29-year-old singer stepped out in a completely see-through netted jumpsuit, under which she went braless, as she strolled around the Italian city.

Gaga’s risque, Seventies-style outfit also featured flared sleeves lined with lace and wide, bell-bottom trouser legs.

Making a statement: Lady Gaga went braless in a see-through netted white jumpsuit in Perugia, Italy on Monday

She finished off the steamy look with a white ribbon tied in a bow at the neck and black high heels.

With her platinum blonde hair in a messy updo and wearing huge red and blue sunglasses, Gaga looked quite serious as she walked along with a bodyguard.

Earlier, Gaga appeared to be posing as a 𝑠e𝑥y stewardess in the same outfit in three Instagram snaps she shared with her 8.4m followers on Instagram.

Daring to bare: The typically revealing outfit left little to the imagination for the popstar

She captioned one: ‘Fly Me To The Moon, can I take stow [sic] your bags for you sire.’

The song title was a reference to the classic often sung by Tony Bennett.

Gaga, real name Stefani Germanotta, and the iconic singer, 88,  are presently on their Cheek To Cheek tour, which has been playing in Europe.

Aside from Switzerland’s Montreux Jazz Festival, the unlikely pair also played Belgium, Spain and Italy.

On tour: Gaga, real name Stefani Germanotta, and the iconic singer Tony Bennett, 88, are presently on their Cheek To Cheek tour, which has been playing in Europe.

She was joined by her fiance Taylor Kinney in Switzerland where they were spotted taking a romantic stroll.

The singer first revealed she was engaged to her beau of four years on Instagram in February with a picture of her sparkler with the words ‘He gave me his heart on Valentine’s Day, and I said YES!’

The newly-engaged couple were seen celebrating afterwards with a romantic dinner at Lady Gaga’s family restaurant Joanne Trattoria on Manhattan’s Upper West Side.

It was there the couple broke the news to Gaga’s parents Times Herald-Record executive editor Barry Lewis revealed as he just happened to be there when it happened.

Just a casual night out: Gaga certainly dressed to impress for her visit to Perugia’s historical center

Risque: Gaga’s risque, Seventies-style outfit also featured flared sleeves lined with lace and wide, bell-bottom trouser legs

Centre of attention: She likes to make a style statement and Lady Gaga certainly did that when she stepped out in Perugia with pals

He told US Weekly that they were not trying to keep their engagement a secret and openly celebrated in the restaurant.

‘Gaga and Taylor were hanging out at the bar and Taylor looked kind of sheepish, like almost any guy would be, where he’s with his future in-laws and she’s showing off the ring,’ he said.

They were like any other couple; she’s showing off the ring and the dad is popping champagne and the groom-to-be is seeming somewhat nervous by all the excitement.’

Interesting choice of travel attire: Lady Gaga dared to go almost bare in a white jumpsuit perforated with holes that clearly revealed her boobs as she flew on a private jet, which she posted on Instagram on Monday

‘The family seemed very, very happy and very excited,’ he added.

Gaga and Tony are due to perform at Atlantic City, New Jersey, on July 24.

Three more US gigs in July round out their tour.

Helping hand: The 29-year-old, who appeared to be posing as a 𝑠e𝑥y stewardess, added a booty shot that she captioned,  ‘Fly Me To The Moon, can I take stow your bags or you sire’

More holes than material: The risque outfit revealed almost all of her assets