Bieber reverts to type

So, how is that teary-eyed new-look Justin Bieber - the one putting the loutish behaviour behind him - getting along?

That phase is over, apparently, and he's back to being a chaos monkey. He's gatecrashed a school prom:

A statement released to Yahoo Music reads, “The school was aware that Mr. Bieber was at the venue recording, but was assured that he would not come out to interfere with the program. His entourage pushed past the school’s security to gain access to the dance floor and was there for three to four minutes. From the students’ perspective it was a once in a lifetime experience to have him at their prom, but we were extremely concerned for the safety of both our students as well as Mr. Bieber. No student was injured while he was there.”

A kinder, gentler Bieber. Except when there's a vague possibility Groober and Spatz from year 12 might have put vodka into the fruit punch.