Fetty Wap says he brought about $165,000 in cash to a New Jersey municipal building where he admitted to charges including driving with tinted windows and a suspended license.
The 25-year-old rapper, whose name is Willie Maxwell II, was ordered to pay $360 in fines.
The Paterson, New Jersey native appeared in a Cedar Grove court on Wednesday with wads of cash sticking out of his pockets.
Maxwell also pleaded guilty to failing to replace lost, destroyed or defaced license plates and a false burglar alarm that went off at his home more than twice.
Maxwell's attorney says his client has applied for a medical exemption for the tinted windows. He says Maxwell, who's blind in one eye due to a childhood eye affliction, has glaucoma.