Lady Gaga certainly knows how to raise the blood pressure of her fans.

The pop superstar dared to bare in a see-through blue dress yesterday as she posed for puictures at a pH๏τo call in Mexico city.

Leaving little to the imagination, Gaga – real name Stefani Germanotta – only had two strategically-placed pieces of striped tape preserving her modesty.

Showing some heart… and a little more: Lady Gaga dares to bare in a sheer powder blue dress at a pH๏τo call in Mexico City yesterday to promote her album

The 25-year-old superstar, who was in the Mexican capital city to promote her new album Born This Way, also debuted a new do, wearing what appeared to be a wig styled in a short bleach blonde bob with a blunt fringe.

The fringe and other strands were dyed black and she completed her wild look with her signature red lipstick, black eye make-up and a pair of outlandish platforms.

The singer recently revealed how she had witnessed the tragic events that occurred in new York on September 11 2001.

At the age of 15 Lady Gaga saw the Twin Towers collapse from the roof of her school, the Convent of the Sacred Heart in Manhattan, New York.

Feeling blue: The singer wore an outlandish pair of platforms with small pieces of tape strategically placed to preserve her modesty

H๏τ wheels and very high heels: The singer took a rest from her vertiginous footwear as she seated herself on an impressive-looking motorbike as she showcased a blonde and black wig

In an exclusive new radio interview the pop queen said that Osama bin Laden’s death earlier this week was: ‘An historical moment in the fight against hatred’.

She also recalled her father, Joseph, coming to collect her from school on foot on the historic day.

The worried pair then waited in fraught desperation for ten hours before they finally learned that Gaga’s mother was safe.

The Poker Face singer’s mother Cynthia worked right across the street from the World Trade Center an had been caught in the terrible commotion ten years ago.

Wild: The singer strikes a pose with her with her studded nails on show

‘The whole city was covered in ashes,’ Gaga told the radio host Toby Knapp in the interview on Washington, DC’s H๏τ 99.5 on Friday.

Gaga, now 25, said she experienced conflicting feelings after she learned bin Laden had been killed.

‘It’s a difficult thing,’ she said

‘Nobody wants to celebrate anyone’s death. But I know it was something that meant a lot to the people of New York, especially those who lost loved ones that day.’

Lady Gaga is heading back to Los Angeles this weekend and will serve as the latest superstar mentor for the final four contestants on next week’s  American Idol.