M.U. started out writing rhymes at age 12, but like most beginning M.C.s, M.U. kept his rhymes to himself. At age 15, M.U. was convinced by a friend, who also wrote rhymes, to join his Rap group. With his friend and another M.C. they formed the group CASO. With his new group members M.U. (who back then went by the name 14th) honed their skills working with local beat makers.

In 1998 CASO released a series of Mixtapes that captured the hearts and minds of York PA and its surrounding communities. CASO continued releasing solo and group Mixtapes and independent projects over the next few years, earning a reputation for his lyrical ability and showmanship.

During this time, M.U. and the group CASO, opened up for major recording artists such as: Jay Z, D Block, Nore, KRS 1, Keith Murray and a host of others. Unfortunately in 2001, M.U.s partners were incarcerated, leaving M.U. to focus on his solo career. In 2002 M.U. released his first solo Mix CD, The League of Extraordinary Men.

More recently M.U. has released a double Mix CD, Murda in the 1st Degree, which sold over 5000 copies in the south central P.A. region. M.U. has also won a number of M.C. battles.

The most recent, Dj Kay Slays Whos Hot Battle , which landed him on Hot97 Drama Hour with Dj Kay Slay. On Hot97, Kay Slay featured an interview with M.U. , Got Doe and a freestyle from M.U.. M.U. has also been feature on the Whos Hot DVD released in November of 2005. He will also be featured on The V.I.P section DVD along with a host if others. M.U. has also recently shred the stage with major label artists D Block, Drag on, Cassidy and Juelz Santana.M.U. has a new independent release called Da Proof .

With this release M.U. has turned his attention to catching the attention of a record label that can help make him the music industries next hip hop success story.