We caught Rob Pattinson driving around his truck with a mystery girl yesterday, and now that we've identified her as Elvis' granddaughter Riley Keough, we have to wonder whether the gorgeous redhead is dating the Twilight hottie? Twilight star loves that she's 'Rock 'n' Roll royalty' 
 
 T wilight heartthrob Robert Pattinson is dating Elvis Presley's granddaughter Riley Keough, a close friend of the star has confirmed. Rob loves the fact that Riley is Elvis's granddaughter - that's true Rock'n'Roll royalty in his eyes.' Furthermore, the new couple is reportedly planning to spend the Fourth of July together, before Rob starts filming Map to the Stars, in Toronto, on July 8. Robert Pattinson & Riley Keough Relationship — Rob Trusts Her Not To Cheat 
 
 Kristen’s affair may have happened in July 2012, but for Rob, the memory was just too much to bare. Birthday fun: Riley, pictured here with Rob, attended Kristen's birthday party at Mexican cantina Malo in Los Feliz back in April 
 
 Riley wore her bright red hair down and was dressed in a green T-shirt and was wearing large glasses. Robert and Kristen are believed to have split for a second time after Kristen got back in touch with Snow White and the Huntsman director Rupert Sanders, whom she confessed to having an affair with last year behind Robert's back.
– Well, this is awkward: Robert Pattinson was spotted driving to his house with a "mystery girl" Sunday, and she's now been IDed as model/actress Riley Keough. That's notable for three reasons: Keough is the granddaughter of Elvis Presley. She co-starred with Pattinson ex Kristen Stewart in The Runaways. (Pattinson and Stewart most recently split in May.) She's close friends with Stewart, according to the New York Daily News. In fact, she attended Stewart's April birthday party, as did Pattinson. So, are Keough and Pattinson dating? Most outlets seem to be spinning it that way (a source tells the ever-trustworthy Daily Mail the two are "inseparable," while another tells Hollywood Life that Rob "is so happy that he can trust someone again"). But X17 notes that maybe she was actually running interference for Kristen, trying to reunite the Twilight lovers.