Happy Birthday to the one and only Lady Gaga! To celebrate this pop icon's special day, let's take a look at some of her superhit songs that made her a Grammy Queen:- This 2008 hit was a game ...

Warner/Chappell Music. In February 2016, Warner Music finally ended the long-fought battle when it paid $14 million to put “Happy Birthday” into the public domain. In June of the same year ...