Barry Adrian Reese (born July 7, 1982) better known by his stage name Cassidy, is an American rapper.

His most successful work to date is his 2004 album Split Personality, which reached #2 on the Billboard 200 album chart and #1 on the Billboard R&B/Hip-Hop albums chart. He won BET's Rap City Best Booth.

Cassidy, who only goes by one name, is the lead singer for the band Antigone Rising. Born January 15, 1975 in Sparta, New Jersey is a self taught singer.

Barry Adrian Reese (born July 7, 1982), better known by his rap name Cassidy (also known as “The Problem” and “The Hustla”) is a popular African American rapper from Philadelphia, Pennsylvania. He was born and raised in North Philadelphia. He was in a group called Larsiny together with his home-town-friends Cal Akbar and Shiz Lansky. Cassidy rose to prominence as a battle rapper and started appearing on mixtapes. Producer Swizz Beatz signed him to his Full Surface label distributed throu