Cee-Lo Green is to be cleared of sexual assault charges.

'The Voice' star was accused of the crime by a woman who claimed the singer slipped ecstasy into her drink and lured her into bed after a date at a sushi restaurant in Los Angeles last year, however, the LA county district attorney's office was expected to reject the case on Monday (21.10.13).

Law enforcement sources told TMZ: ''Authorities had problems with the woman's story ... one of which was that she and Cee-Lo had been dating for months and had already been intimate.''

Cee-Lo is said not only to have denied allegations, but to have encouraged the district attorney and Los Angeles Police Department to fully investigate. It is thought that the D.A. will reject the sexual assault case because of insufficient evidence.

The 39-year-old star will, however, be charged with one count of furnishing ecstasy, according to the report.

The woman reportedly has a tape recording of Cee-Lo talking about the incident.

Sources revealed that although Cee-Lo never said anything about slipping ecstasy in her drink, he did reference the drug. The D.A. is therefore thought to have viewed the tape as a confession to drug use.