Michael Anthony Deering[2] (born November 25,[3] 1967), known by his stage name Mikey D, is an American rapper.

As a member of Main Source, he replaced Large Professor,[4] who parted ways with the group due to business differences.

Mikey D was born on November 25, 1967, in Laurelton, Queens, New York City, to Linda Deering and Victor Fisher.

[5] His parents separated when he was young and he was raised by his grandparents, Jerome and Betty Deering in Laurelton Queens, New York.

He was the youngest member to join the Clientele Brothers, a group of emcees consisting of Eddie O'Jay and Will Seville.

According to Deering, he stated that his group originally wanted to be called "Boom Bash", but one of his managers didn't think it was a good idea.

[9] In 1993, he become an official member of the critically acclaimed Toronto/Queens-based hip hop group Main Source after Large Professor left to pursue a solo career.

He is featured on a song called "Pump Ya Fist Like This" on Large Professor's 2008's third album, Main Source.