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Mary Chapin Carpenter

Mary Chapin Carpenter (born February 21, 1958) is an American singer-songwriter. Carpenter spent several years singing in Washington, D.C. clubs before signing in the late 1980s with Columbia Records, who marketed her as a country singer.

Mary J. Blige

Mary Jane Blige ( born January 11, 1971) is an American singer, songwriter, actress, and philanthropist.

Mary Lambert

Mary Danielle Lambert (born May 3, 1989) is an American singer, songwriter and spoken word artist.

Mary Magdalan

Mary Magdalan is a metal underground band from Los Angeles, California. 

Mary Mary

Mary Mary are a female American gospel duo composed of sisters Erica Atkins-Campbell and Trecina Atkins-Campbell.

Masked Wolf

Harry Michael, known professionally as Masked Wolf, is an Australian rapper. He is best known for his single "Astronaut in the Ocean".
In January 2021, Masked Wolf signed to US-based label Elektra Records, owned by Warner Music Group, in a multi-album deal.

Mason Ramsey

Mason Ramsey (born November 16, 2006) is an American singer and voice actor.

Massive Attack

Massive Attack are an English musical group formed in 1988 in Bristol, consisting of Robert "3D" Del Naja, Grant "Daddy G" Marshall, and formerly Andy "Mushroom" Vowles ("Mush").

Mastodon

Mastodon is an American heavy metal band from Atlanta, Georgia, formed in 2000.

Mat Kearney

Mathew William Kearney ( born December 1, 1978) is an American musician born in Eugene, Oregon, now based in Nashville, Tennessee.

Mat Zo

Matan Zohar (born 30 April 1990), better known by his stage name Mat Zo, is a British producer and DJ.

Matchbox Twenty

Matchbox Twenty (previously Matchbox 20, and frequently shortened to MB20) is an American rock band, formed in Orlando, Florida, in 1995.