The biggest trance event this year in North America was held in California this past weekend where the best trance DJs converged for 2 nights to deliver outstanding sets. Fans traveled far and wide to check out the Dreamstate lineup and by most accounts the event delivered. The set that received the highest praise was none other than John O'Callaghan, an EDM Canada favourite. Playing a mix of uplifting and team 140 trance, John O'Callaghan knows how to please hardcore trance fans. Thankfully he uploaded his set on Soundcloud so the rest of us can also enjoy this memorable set.