"Twilight" lovers, Robert Pattinson and Kristen Stewart may not be the only one celebrity couple rekindling romance as their friend, Riley Keough has been spotted holding hands with Alex Pettyfer at "The Butler" premieres, giving hints of reunion with ex-fiance.

Elvis Presley’s granddaughter was Alex’s date at the L.A. Premieres of Lee Daniels’ "The Butler" on Monday, August 12. Alex stars in the bio-drama as Thomas Westfall and the buzz is getting louder of his reunion with the 24-year old actress and model after they were spotted holding hands and getting cozy at the event.

"There was definitely warmth between Riley and Alex," an eyewitness describes the on-and-off couple in an interview with Us Weekly, said Yahoo Movies. "They were laughing together and smiling at each other."

They were spotted holding hands at the VIP area and the onlooker was certain, that “ definitely came together."

The ring in Riley’s finger didn’t escape the eagle-eyed observer, either.

The celebrity couple met on the set of "Magic Mike" (2011) and they got engaged shortly after dating. They stepped out as a couple in October 2011. After half-a year together, Riley debuted her engagement ring from British beau.

"They have been inseparable since they started dating," an insider was quoted as telling Us back then.

But it didn’t take long before they called off the engagement. And before the year ended, Riley and Alex called it off.

Riley has just been slowly making a name for herself since she began her career as a model at 16. She had already appeared in films including "Runaways", she co-starred with Kristen Stewart. She’s reportedly in talks to appear in "Mad Max Fury." But she has become more of a household names recently when her name got embroiled in Robsten affair and identified as the first girl Rob has liked after split from Kristen.

Riley denied the reports in July 2013 but rumours still fly around that she’s hooking up with Rob, now shunned by reports that Riley is reuniting with Alex.

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