D4vd asked a judge for a haircut and new clothes ahead of his preliminary hearing as he faces serious charges in connection to the murder of 14-year-old Celeste Rivas Hernandez . According to court documents reviewed by TMZ , the 21-year-old singer’s team requested permission for him to appear in dress pants and a button-down shirt at the Friday hearing, but the judge denied that request, meaning he will wear standard jail issued clothing instead. He did receive partial approval on another request, as Los Angeles County Superior Court Judge Charlaine F. Olmedo ordered the sheriff's department to give him a haircut before the hearing on Friday (May 1). The “Romantic Homicide” singer was arrested on April 16 in connection with Rivas’s death and has since been formally charged with first-degree murder, continuous sexual abuse of a child under 14, and mutilation of human remains. D4vd’s arrest came seven months after Rivas’ dismembered and decomposed body was found in the front trunk of his Tesla.…