Lady Gaga released her first album in 2013.
Lady Gaga . 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 .