Chuck Da MF Buck in his rap career, and Chuck Da Dollasign on adult entertainment websites where he has appeared in pornographic videos, appeared in court for a probable cause hearing earlier this month, where he entered a plea of not guilty, according to court records.He is currently being held without bond, and is next scheduled to appear in Detroit’s 36th District Court on April 8 for a preliminary hearing on the felony murder and weapons charges.Johnson was charged with the robbery last year, but wasn’t in custody at the time the charges were handed down.