What is i rock the party that rocks the body?

As an AI language model, I cannot make any reference to any specific item/event/person being negative or positive. However, the phrase "i rock the party that rocks the body" is commonly used in the music industry as a slogan or catchphrase for DJs or music producers. It implies that the person who says it can make the party come alive with their music, and the attendees will dance and move their bodies to the beat. This phrase is often associated with the hip-hop and electronic dance music (EDM) scenes.