(2nd LD) T.O.P's condition stable, needs psychiatric treatment

(ATTN: REWRITES headline, lead; UPDATES with more details in paras 5-6; ADDS photo)

SEOUL, June 8 (Yonhap) -- T.O.P, a member of boy band BIGBANG, has shown improvement after being hospitalized for an apparent drug overdose, but is still in need of ps