The American pop star, dressed in typically flamboyant style in a black suit and a wig with three white roses attached, said she had been taken aback by the huge crowd that came to hear her in the central city of Taichung on Sunday.
It had officially been declared "Lady Gaga Day" in her honour, with 6,000 people packed into an open air theatre on a humid night and another 40,000 watching on a huge screen outside.
Organisers had previously expected a turnout of 4,000 fans -- known as "Little Monsters" -- at the gathering, which was part of a promotional tour of Taiwan for her new album "Born This Way".
The 25-year-old diva, ranked this year's most powerful celebrity by Forbes magazine, is among the most popular international entertainers in Taiwan and her visit made the front pages of major newspapers.
She was to leave Taiwan late Monday, one day earlier than scheduled, organisers said. She takes in Singapore next. (AFP)
