Michael Lawrence Marrow (August 2, 1955 – December 12, 2019),[1] known as PHASE 2 and Lonny Wood, was an American aerosol paint artist based in New York City.

Many famous graffiti writers of the early 1970s would meet at a doughnut shop across from the school before heading down to the 149th Street–Grand Concourse station to watch tagged trains on the IRT subway lines pass.

"[5] In late 1972, Phase 2 first used an early version of the "bubble letter" or "softie", a style of writing which would become extremely influential and is considered a "giant leap" in the art form.

[8] Hip-hop journalist Jeff Chang has noted that Phase 2's canvasses from 1973 have "been widely recognized as defining the early genre.

"[4] In 1975, he joined the newly created United Graffiti Artists, a professional aerosol writer collective that began to attract media attention.

[10] Phase participated in hip-hop shows organized by Kool Lady Blue during the summer of 1982 at The Roxy in Chelsea, Manhattan.

These shows brought together the top DJ's, rappers, break-dancers, and aerosol artists from the South Bronx and introduced hip-hop music and culture to the downtown punk and new wave scenes.

In the DVD commentary for the film, director Charlie Ahearn explained that, when thinking about the key character named "Phade", he had Phase 2 in mind.