Our Lady Peace is headlining Day 1 of the Virgin Festival when it returns to Vancouver this July, organizers announced on Thursday.

Twelve acts, including Sonic Youth, k-os and Mute Math, are performing at Burnaby’s Deer Lake Park on July 25 and 26 with more musicians expected to be added to the lineup by next month.

Grammy Award-winning songwriter and guitar legend Ben Harper and Relentless 7 will headline Day 2.

The festival, which was last held in the Vancouver area in 2007, is expected to attract more than 20,000 music lovers.

Tickets go on sale this Monday at noon, information is available at virginfestival.ca.