Jessica Sierra's mouth didn't earn her the title of American Idol.

So the singer is trying to put her oral talents to a different use.

According to a police report obtained by TMZ, Sierra told the arresting officer over the weekend, "I'll suck your d-ick if you don't take me to jail."

Once her Antonella Barba-like offer was rejected, Sierra hurled the N word a few times, screaming, "F*** you N*****!" According to the police report, her friend tried calming Jessica down as went to shove a cop. From there, naturally, Sierra and her pal ended up fighting in the street.

The former American Idol finalist has been charged with disorderly intoxication, violation of parole, obstruction of justice and tremendous celebrity gossip fodder.