It seems that even 'world star' Psy has interview questions that he does not want to answer.

Rapper Psy walked out of his radio interview with Melbourne's Fox FM last week when they asked him about his arrest for marijuana in 2001.

Due to Psy leaving the interview, Fox FM decided not to air the interview on Friday.

Fox FM commented, "We were talking to Psy about his life before 'Gangnam Style' and the issue of his arrests came up."

They continued, "Information about his arrests were already exposed online, but it seems that Psy doesn't like to talk about things other than 'Gangnam Style'."

Fox FM continued that they were shocked and disappointed that he walked out on the interview, especially because there were no forewarnings not to talk about these issues beforehand.

The audio of Psy's interview with Fox FM will not be released to the public.

Psy's "Gangnam Style" music video has currently surpassed 500 million views on YouTube and has ranked number 4 for 'most watched videos' of all time.

He has ranked number 1 on iTunes in 30 countries and has ranked number 2 on Billboard's main single chart Hot 100. 

He has also recently signed a contract with Justin Bieber's agency and plans to release his first U.S. single sometime in November.