Nick Carter musician
"You should've taken it as a compliment dick," Carter wrote when an artist from Berlin said the singer used a picture of his work without attribution or permission.
The Backstreet Boys singer announced on Twitter that he and his sister had sought a restraining order in light of recent "alarming behavior."
Melissa Schuman, a former member of the pop girl group Dream, accused the Backstreet Boy of raping her in 2002.
The Los Angeles County district attorney is reviewing allegations made by Melissa Schuman against Carter.