CeeLo Green has a secret weapon in his felony drug case -- his hired gun Blair Berk.
CeeLo made it clear as he walked into the courthouse today for a boring hearing ... he has the best lawyer in L.A.
Truth be told ... Berk (above, in black dress holding door) lives up to the hype ... having repped just about every celeb with legal troubles -- from Robert Downey, Jr to Lindsay and Britney.
A woman CeeLo was dating accused him of rape but the D.A. rejected her claim. He's being tried for consensually supplying her with Ecstasy.