Justin Bieber reportedly stormed out of a deposition when quizzed about Selena Gomez yesterday.

The 20-year-old singer has many legal issues at the moment and faced questions over allegations he asked one of his bodyguards to beat up a photographer called Jeffrey Binion in June on Thursday.

He sat under oath for four and a half hours in Miami, apparently becoming more irritated as time wore on.

Justin was quizzed on many subjects, but it was when his ex-girlfriend Selena was raised that he really lost his cool.

According to TMZ, an attorney began the segment by asking the singer if his ex had ever been with him when he'd had an altercation with photographers. Justin's lawyer Howard Weitzman objected to the line of questioning as he felt it was created only to make his client angry.

The other attorney continued anyway, eventually leading to the Canadian singer and his counsel leaving the room.

"Don't ask me about her, do not ask me about her!" Justin is said to have yelled as he departed.

He eventually returned, but the line of questioning continued.

When the singer answered one question with "yeah", the attorney confirmed he meant yes. This is said to have irritated the heartthrob all over again.

"What the f**k is the difference between yeah and yes?!" he is quoted as saying.

The star reportedly then became sarcastic and likened the inquisition to American investigative TV programme 60 Minutes.

"OK Katie Couric, what's your question again?" he is also said to have responded, referencing the famed TV journalist.

Also of note was Justin's admission that he doesn't have a prescription for anxiety medication Xanax. Some of the drug was reportedly found at his Calabasas mansion when it was raided by police in connection to allegation Justin had egged his neighbour's home causing $20,000 of damage.

He was also found to have the substance in his system when he was stopped by police for drag racing in Miami in January. He was later charged with DUI, resisting arrest without violence and driving on an expired licence.

When he was arrested, the singer told cops he takes anxiety medication. He explained he didn't know what it was called or whether he had a prescription as his mother Pattie Mallette "takes care of all that stuff".