We Bet You Didn't Know This About Lady Gaga
Lady Gaga has sky-rocketed to fame since her first big hit in 2008, becoming one of the most powerful celebrities of 2013 (according to Forbes).
And of course with that fame (and her extreme dedication to her fans), she's let the world into her life. We know when she goes on dates and when she shops for wedding dresses, what she does on her days off and even what she looks like beneath her wild costumes...
For example, you'll never believe what her and Paris Hilton have in common! Or which popular TV show she once starred in.
Hit play on the video above to test your Gaga knowledge!