MINEOLA, N.Y. (AP) -- Justin Bieber appears in a new anti-cyberbullying video released Wednesday by a New York prosecutor as part of a plea deal resolving misdemeanor charges against one the pop star's managers and a record executive, stemming from a mall fan frenzy in 2009.
They were arrested after police ordered a Bieber autograph session at a clothing store shut down over fears someone could get hurt. More than 3,000 teens and younger girls had arrived by 1 p.m. for an event scheduled for 4 p.m., leading to the cancellation.
Bieber never appeared, but police said at one point while they were trying to disperse the crowd they were hindered by a message from Bieber's Twitter account stating: "On my way to Roosevelt Field Mall in Long Island, NY to sign and meet fans! I'm pumped. See u there."
Prosecutors said police had asked Bieber's staff to send a Tweet from his account to notify fans that the event was cancelled. Though they tried, Island Def Jam Record Music Group employees were unable Tweet on Bieber's account because the singer's manager, Scott Braun, had changed the account's password to prevent anyone from cancelling the event. About 90 minutes after the police made their initial request, they said Braun sent two Tweets cancelling the event and within 15 minutes, the crowd dispersed, prosecutors said.
Braun and Def Jam Records executive James Roppo were charged with misdemeanors. The charges were later dropped in a plea agreement that permitted Bieber's record company and a management company to plead guilty to fire code violations, as well as reimburse Nassau County almost $8,000.
The agreement also called for Bieber to record the anti-cyberbullying public service announcement video released Wednesday.
Nassau County District Attorney Kathleen Rice said after the plea agreement was released that "both IDJ and Mr. Bieber's management company have learned from this incident, and since the Roosevelt Field appearance, have successfully implemented carefully executed safety plans at other venues."
A spokesman for Bieber did not immediately respond Wednesday to a request for comment.