Sweden’s Prince Carl Philip and Princess Sofia are mourning the death of Avicii, the 28-year-old Swedish deejay and producer who was found dead on Friday in Muscat, Oman.

It is with great sadness that we received the news that Tim Bergling has died. We are grateful that we got to know him and admired him as an artist and the nice person he was,” the royal couple said in a statement issued to local media over the weekend about the music superstar who performed at their wedding in 2015.

“He made our wedding unforgettable with his amazing music,” the couple continued. “Our warmest thoughts go out to his family.”

Carl Philip, 38, and Sofia, 33, were also in attendance at Avicii’s Swedish concert in August 2016, when he performed at Malmö’s Tallriken Arena, after the producer announced that health problems had forced him to retire from touring.

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Avicii, born Tim Bergling, was found dead on April 20. Although a cause of death has yet…