Prosecutors have charged CEE LO GREEN with illegally giving a woman Ecstasy but did not file rape charges.
The Hollywood Reporter reported that the Los Angeles District Attorney's office charged the singer, whose real name is Thomas DeCarlo Callaway, aged 39.
Los Angeles prosecutors have thrown out the sexual assault charges based on lack of sufficient evidence.
The unidentified woman told police that after Green slipped a drug in her drink, she later woke up naked in bed with him with no recollection of how she got there, the gossip site reports.
The Forget You singer has denied the allegations, USA Today reported.
Greene aka Callaway was charged with one felony count of furnishing a controlled substance.
If convicted he faces four years in state prison.
He is perhaps best known as a judge on NBC's The Voice competition show.
UPDATED: At his arraignment, Cee Lo pleaded not guilty.