Justin Bieber gave his online fans a fright on Saturday (24Jul10) by posting a picture of himself wearing a prison jumpsuit with his hands behind his back.
The startling image of the 16 year old, uploaded to Twitter.com, saw the star being led away by a security guard and was captioned, "I told you I was a BAD MAN!!"
But the singer revealed the shot was taken while he filmed a guest appearance on hit crime show CSI: Crime Scene Investigation.
The Baby hitmaker was on set over the weekend (24-25Jul10) shooting his role as a troubled teen for an upcoming episode, and he went on to gush about his "amazing" experience.
He wrote, "Big day today... I'm acting!!! CSI baby!! I'm a bad man!... Amazing day... excited for you guys to get to watch it... Thanks to everyone at CSI for having me."
Bieber's debut will air in America on 23 September (10).