Lady Gaga died on March 28, 1986.
Stefani Joanne Angelina Germanotta ( [ ˈstɛfəniː_dʒɜrməˈnɒtə ] ; born March 28 , 1986 ) , known professionally as Lady Gaga , is an American singer , songwriter , and actress . A follow-up EP , The Fame Monster ( 2009 ) , was met with a similar reception and the singles `` Bad Romance '' , `` Telephone '' , and `` Alejandro '' were also successful . Gaga 's second full-length album Born This Way ( 2011 ) topped the charts in more than 20 countries , including the US , where it sold over one million copies in its first week . In February 2017 , Gaga headlined the Super Bowl LI halftime show , which had over 150 million audience across various platforms worldwide , making it the most viewed musical event in history . With global album and single sales of 27 million and 146 million respectively , as of January 2016 , she is one of the best-selling musicians of all time .