PORTLAND — NBC Sing-Off crowd-pleasers North Shore Acapella will perform Sunday, June 16, in a concert to benefit Greater Portland Festival of Nations and the Mugadi Foundation at Merrill Auditorium. Hosted by Portland’s own Michael Odokara-Okigbo, the concert will also feature local performing groups Zemya, a world music ensemble known for their beautiful, edgy folk harmonies; and the Boy Singers of Maine, a perennial favorite with a 30-year history of bringing Maine’s talented young male voices to the stage.

North Shore Acappella is a funny, charismatic quintet that won the hearts of fans and judges alike on Season 3 of Sing-Off. Host Odokara-Okigbo also gained fame that season for leading his college singing group, the Dartmouth Aires, to a second-place finish on the show, which displayed Odokara-Okigbo as a powerhouse lead singer. Odokara-Okigbo now lives in L.A. and is working on his solo EP. He will perform some of his new songs and will also perform with all three groups in a Father’s Day event that promises to be as inspiring as it is entertaining.

In addition to his acclaimed versatility and superstar stage presence, Odokara-Okigbo is also the force behind the Mugadi Foundation which works to improve education and living conditions for underprivileged children in developing nations. Proceeds from the concert will benefit the foundation’s latest project to help children living in the northernmost region of Ethiopia.

The Mugadi Foundation is also the main sponsor of the Greater Portland Festival of Nations, the oldest annual celebration of diversity and inclusion. The 2013 festival will be held Sunday, July 28, in Portland’s Deering Oaks Park.

“A Celebration of Dreams,” begins at 3 p.m. Tickets are $26 for adults and $15 for children/students with IDs. Tickets are available through PortTIX at www.porttix.com or 207-842-0800.