Members of the world’s most beloved music band have died in horror plane crash on route to concert.

FlightAware.com says the plane was a Pilatus PC-12/47E owned by Haynie Enterprises. The crash will now be looked into by the National Transportation Safety Board.

The Nelons were inducted into the Gospel Music Association Hall of Fame in 2016. They are widely seen as one of the most important families in US gospel history. They had a lot of hits, like “I Shall Not Be Moved,” “Come Morning,” and “We Shall Wear a Robe and Crown.” During their career, they have also been nominated for three Grammys.