Lady Gaga - Top 10 Fun Facts - as part of the expert series by GeoBeats. 10 - She learned piano at the age of 4 by ear. 9 - Her stage name Lady Gaga was inspired by the Queen song "Radio Ga Ga". 8 - Her birth name is Stefani Joanne Angelina Germanotta. 7 - Lady Gaga's facebook page has over 45 million likes. 6 - She holds a spot in Guinness Book of World Records for her over 16 million twitter followers. 5 - Lady Gaga has been recognized by Forbes as one of the 100 most powerful women. 4 - She likes to travel with a purple teacup. 3 - Lady Gaga went to the same Manhattan high school as Nicky and Paris Hilton. 2 - She once ordered $1000 of pizzas for her waiting fans. 1 - Lady Gaga claims that her upcoming perfume smells like "an expensive hooker".