Robert Pattinson not dating Riley Keough, her rep confirms

Actor Robert Pattinson, left, and actress/model Riley Keough.
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Riley Keough's rep is putting those Robert Pattinson rumors to rest.

Speculation swirled that Pattinson, 27, was dating Elvis Presley's granddaughter after a woman thought to resemble Keough was photographed with the "Twilight" star in his pick-up truck over the weekend.

But Keough's rep shot down the romance rumors, adding that the 24-year-old was not photographed the day the snapshot was taken -- meaning she's not the "mystery woman" spotted in Pattinson's car.

"Riley isn't dating Rob," the rep told "And I can confirm that Riley was not photographed at all this weekend."

Keough, the daughter of Lisa Mare Presley, has had roles in "Magic Mike" and "The Runaways" (which also starred Pattinson's ex-girlfriend, Kristen Stewart).

Pattinson and Stewart split in May, nearly a year after her July 2012 admission to a fling with married director Rupert Sanders.

In the past, Keough has dated singer Ryan Cabrera and actor Alex Pettyfer.