John Campbell was born in Washington DC, and grew up in Fort Washington Maryland. He started taking piano lessons around the age of 8. A short time after that he began playing the clarinet in his elementary school ensemble. Once he got to middle school he began playing the tenor and baritone saxophone. He participated in the county wide solo and ensemble festival during this time. After middle school he went to Oxon Hill high school. His high school band director, Walter Harley, asked students to consider playing different instruments than they had played coming into the school because of the needs of the band. Mr. Harley asked the students "Would anybody like to play trombone?" John had a strong feeling he should take that opportunity, and he did. From that point forward trombone was his main instrument, and he participated in various ensembles in his schools music program including Concert, Symphonic, Jazz, Marching and Pep bands. He also participated in Prince George's county All county band for 3 years as well as Maryland All State band his senior year. Upon graduating from high school in 2006 he received the Semper Fidelis award for musical excellence.
After graduating high school John attended Towson University for 2 years, after which he took some time off from School. He began attending the University of the District of Columbia in 2010 and in 2016 received his Bachelor's of Music.
Some of the greatest ways John has been able to connect with people through music has been in thereaputic settings, including working for a company called Musical Encounters which provides music outreach for elders in both individual and group settings. He currently performs regularly with a brass band that he helped form, Crush Funk Brass band. They perform many genres of music and have been active performing in DMV (DC, Maryland, Virginia) communities for almost 10 years.