The South Korean popstar's hit song has topped the charts in countries including the UK and Australia, and its video has become the most 'liked' ever on YouTube.
Newsbeat quotes Psy as saying: "The second single is going to be in English. And the thing is, it's too much pressure to overcome 'Gangnam Style'. It's really hard."
He went on: "The problem is my music video is more popular than I am. That's a big problem for me right now, so I've got to overcome my music video first.
"I've got to come to the UK, I've got to go everywhere to promote myself, who I am and what I've done for 12 years in Korea."
> New viral video replaces 'Gangnam Style' music with sound FX - watch
The singer also spoke about how he is treated back home following his global success, laughing as he explained: "Everybody is treating me like a gold medallist.
"Everybody is describing me as a worldwide phenomenon, so especially for Korea, they are thinking of me as representing our country for the new history, for the K-pop history, so they are cheering a lot here."
Psy performed for 80,000 fans at a free homecoming concert in Seoul last night (October 4).
Photo gallery - Psy at Seoul City Hall:
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