The station officially launched as "Hot 93.5" on August 25 at 12:00 p.m. after a stunt of a clock ticking. The first song on "Hot" was "I Gotta Feeling" by The Black Eyed Peas, which started off 10,000 songs in a row commercial free which ended on September 21, 2009, when regular programming began. This is the first time Sudbury has had a CHR/Top 40 station since sister CHNO-FM flipped formats to adult hits on January 1, 2006. On September 26, 2009, CIGM began airing syndicated countdown shows such as the "Canadian Top 20 with Jimmy T", "American Top 40" with Ryan Seacrest, "Canadian Hit 30 Countdown" and "Rick Dees Weekly Top 40". The station also includes "On Air with Ryan Seacrest" which runs weekdays.