PH…4…INP SOUNDPHOTO PHILA,.PA…“DOPE RAID.” Nightclub singer Billie Holiday was picked up by Phila., Police in an early morning dope raid at her hotel today. She was held under bail on charges of using dope. She is currently filling a singing engagement at a night club here. Held with her on the same charge was her husband and road manager, Louis McKay, 46. The 41-year-old singer insisted on bringing her pet Chihuahua dog to City Hall. Photo shows Billie leaving the Central cell with her pet dog. Detective Capt. Clarence Ferguson who lead the raid is behind her. DAILY NEWS PHOTO BY SAM PSORAS….2/23/56….