Lady Gaga

Lady Gaga was a singer in the early 21st century. One of her songs was called Pokerface. (BFA: The Crimes of Thomas Brewster) Iris Wildthyme sang Pokerface in the 1960s while in her second incarnation. She claimed that forty years later, Gaga stole outfits from her wardrobe to wear on stage. (IWN: Elementary, My Dear Sheila)

When Clyde Langer shown a newspaper to the Automatons so they could learn English, "Lady Gaga" was among the terms recited by them as they scanned the newspaper and learned the language almost instantly. (SJA: The Empty Planet)

Amy Pond once referred to Lady Winters as Lady Gaga. (VG: The Gunpowder Plot)