The singer apparently fell in love with the British brew while touring in the UK back in 2009 and now insists that a box of the teabags be backstage at all of her shows.
"PG Tips are always on the rider. It's the best black tea and she makes sure it's on the list, wherever we play," DJ Lady Starlight, who is currently touring with the star, told The Sun.
A PG Tips spokeswoman added: "We are delighted Lady GaGa has such impeccable taste."
Meanwhile, Lady GaGa recently announced that her third studio album ARTPOP will be a "multimedia experience".
"ARTPOP will be released as an iPad, iPhone, mobile and computer compatible application (WORLD) that is completely interactive with chats, films for every song, extra music, content, GaGa-inspired games, fashion updates, magazines and more still in the works!" she explained.
Watch the music video for Lady GaGa's 'Paparazzi' below: