Robert Pattinson played supportive fiance to FKA Twigs who performed during the 2015 Coachella Valley Music & Arts Festival in Indio, California over the weekend.

The "Twilight" was accompanied by Katy Perry, who recently broke up with John Mayer, as he watched his girlfriend perform.

"FKA twigs stole the show in an eccentric netted number with gold embellishment and matching jewellery," Daily Mail said. "The star, whose real name is Tahliah Debrett Barnett, allegedly accepted a proposal from R-Patz last month and they apparently intend to wed this summer."

For his part, Robert Pattinson opted for a more casual wear as he tried not to steal the thunder away from fiancee FKA Twigs at Coachella 2015.

Meanwhile, The Sun reported, per Daily Mirror, that Robert Pattinson and FKA Twigs used the Coachella 2015 as a springboard to their engagement party after the musical event.

"The 28-year-old star, who is reported to have recently proposed to the 27-year-old musician, has invited a string of friends - including pop star Katy Perry - to their rented mansion in Palm Springs, where they will celebrate their engagement tonight," the article noted.

The Sun also tracked down an alleged source who claimed, "Rob has arranged for their closest friends to surprise her at their mansion. He's got a party planner to book dancers for the pool area and a cocktail maker. It's the first chance they've had to toast their engagement with friends so it should be a big night for them."

Following her Coachella 2015 performance, FKA Twigs and Robert Pattinson went to the after party hosted by Jeremy Scott and Moschino, said People magazine.

The guests had "DeLeón Tequila cocktails, had bites by Eveleigh and checked out Polaris Slingshot motorcycles."

"Walking into the party holding hands, Pattinson and twigs (who was not seen sporting an engagement ring) shared kisses while hanging out with their friends," it said.