Even celebrity children can get in trouble for boozing. Just ask 20-year-old Demi Moore/Bruce Willis spawn Scout Willis, who was busted last night in Union Square for allegedly drinking a beer (gasp!) and giving the police a fake ID (the horror!). In spite of those very serious crimes, the Brown University student and aspiring singer was released without bail last night—she has to be back in court on July 31.

According to court papers, the incident went down just before 7 p.m. when a transit cop saw Willis with an 8 oz. Pakistani beer in the station. When he asked her for her ID she gave officers a New York State ID with the name Katherine Kelly. But upon further questioning, she quickly 'fessed up and handed over her real, California ID. Reportedly telling officers, "My name is Scout Willis. The first ID isn't mine. My friend gave it to me. I don't know Katherine Kelly."

The young Willis is due back in court next month. As it happens, her father can currently be seen in a movie playing cop who serves beer to a minor!