Chris Brown caused a big scare for his public relations folks on Halloween. The 23-year-old singer and his crew dropped by Rihanna‘s Halloween bash dressed as Taliban-style terrorists.

Rihanna rocked out with her Halloween party in West Hollywood, but Brown and his crew terrorized the event with their costumes.

He posted a picture of himself and crew donning long beards and turbans and wielding guns, including an assault rifle (presumably fake). The caption he tweeted along with the picture read: “Ain’t nobody F***ing wit my clique #ohb.” [See Instagram image here]

When the incoming criticism began to cloud Twitter, Joyce Hawkins, Brown’s mother came to the singer’s defense.

“Halloween is just for fun, nothing more than just fun,” Hawkins (@mombreezy) tweeted. “Get a life please.”

–E. Parker, CBS Local