The Sled Island Music & Arts Festival announced that its guest curators for this year’s fest will be John Dwyer, the singer/guitarist for the San Francisco-based band, The Oh Sees, and Tim Hecker, the Montreal-based electronic artist who has also released music under the moniker Jetone. The curators help to set the direction and tone of the festival through their specialized programming choices. Sled Island will also feature parties hosted by the Canadian sports television personalities John Onrait and Dave Hodge. The seventh annual 4-day festival will take place from June 19-22 in Calgary, Canada and will feature 300 bands, artists, comedians and filmmakers in more than 30 venues throughout the city.