We all know that Elvis is the 'King of Rock and Roll', but did you know his Granddaughter is in one of this weekends biggest new movies?                             Believe it or not, the King's 23 year old granddaughter, Riley Keough, has a part in 'Magic Mike' the male stripper movie opening this weekend.  Riley is Lisa Marie's daughter with her first husband Danny Keough. Riley choose the movie route over music because  "I think acting is a fun thing because you get to have so many lifetimes in one lifetime, being all these different people," she said.