House of Balloons is the debut mixtape by Canadian singer The Weeknd. It was released as a free download on March 21, 2011, then was later released by XO. The mixtape was also released on The Weeknd's official website. Its music incorporates electronic and contemporary genres, including R&B and soul, along with trip hop, indie rock and dream pop tones. The contributions to the mixtape's production came from Canadian record producers such as Doc McKinney, Zodiac and Illangelo, among others. On November 13, 2012, The Weeknd released his three-part compilation album Trilogy, where the first part is the House of Balloons mixtape.