WTOS also hosted Rock Relief every year, raising funds for a different charitable organization each summer. It originated as a response to Hurricane Katrina in 2005, and became an annual event to raise money for charities in need, up through July, 2008. In 2009, Rock Relief took on a year-round dimension as the "WTOS School of Rock" concert series. The series features local and regional bands playing concerts at area high schools that raise money for the school's music program. Several Maine high schools have hosted shows, and as of 2010, over 20 different bands have performed. The concert series was discontinued in 2014.
