Ted A. Fernandez ’09 of Resonance belts out “Feeling Good,” originally by Nina Simone at the Greater Boston Invitational Songfest on Saturday. GBIS is an annual concert held during Parent’s Weekend that showcases all of MIT’s a cappella groups.

Diana Ye—The Tech

Ted A. Fernandez ’09 of Resonance belts out “Feeling Good,” originally by Nina Simone at the Greater Boston Invitational Songfest on Saturday. GBIS is an annual concert held during Parent’s Weekend that showcases all of MIT’s a cappella groups. Diana Ye—The Tech