Justin Bieber has tried to defend himself over his controversial deposition videos by saying he has a right to "feel harassed".
The pop brat has been questioned by lawyers as part of a lawsuit about his bodyguard allegedly beating up a photographer and in clips from the four-and-a-half-hour interview released by TMZ, he comes across as arrogant and rude.
The Baby singer, 20, can be seen pretending not to have understood the questions he is being asked, smirking at lawyers and taking issue with a clip he has been asked to watch of his bodyguard being described as a "film".
He lost his temper at one point while being asked about on-off girlfriend Selena Gomez, wagging his finger at the lawyer and snapping, "Don't ask me about her again," before storming out.
When he was asked whether he knew Usher, who has mentored him, Justin initially claimed not to know him by his full name (Raymond Usher the Fourth) before admitting that he did when asked if he knew "an individual and entertainer by the name of Usher".
The lawyer asked if it was true Usher had been instrumental in starting his career and Justin, almost whispering, replied: "I was found on YouTube. I think that I was detrimental to my own career."
When he was asked to speak up as the lawyer couldn't hear him, his own lawyer hastily corrected him that he had said "instrumental", not "detrimental".
Justin later tweeted: "Love how some people love to twist and justify the horrible action of others. We all have a right to defend ourselves and feel harassed. They can't break us. They can't get us down. We are too strong. We love too much. #mybeliebers."
Meanwhile, the pop star made a surprise appearance at manager Scooter Braun's surprise SXSW showcase.
He said of his performance: "Fun taking the stage with all the other acts. Great people. Had to do a little acoustic set myself. Maybe I should do another one? ;). THIS IS WHY I DO IT! Not for headlines but for the fans, for the music! For #mybeliebers. I love music."
Justin said before he performed As Long As You Love Me: "This next song goes out to my baby," sparking speculation he meant Selena. He also posted a video online of them dancing to John Legend's Ordinary People, in which he lifts her in the air and pins her to a wall.