The trio of Axwell, Steve Angello and Sebastian Ingrosso had a string of international hits in the early 2010s before splitting up more than five years ago.
After making a surprise appearance at a US festival in March, rumours of the EDM group getting back together grew until a clock appeared on their website last week counting down to a live-streamed press conference on Monday.
“We are coming home,” Angello said in the announcement, which was entirely in Swedish.
“We start in Stockholm and are going to play the Tele2 Arena on May 4th, 2019.”
The group also indicated that more touring would follow and hinted that they have recorded new music.
Swedish House Mafia began performing in 2008 and saw international success with a number of hits, including One (Your Name), Save the World and Don’t You Worry Child.