Psy ''did every animal'' before creating his infamous donkey dance.

The 'Gangnam Style' hitmaker worked with a group of choreographers for a month on the catchy routine and admits the moves could have been very different if it hadn't been for a chance viewing of a TV show.

He explained: ''We did every animal. We did this slithering on the floor that we called the snake dance. Then someone turned on the TV and there was a horse galloping across a yard.''

The Korean pop star has found global fame thanks to the catchy track but admits it is exhausting travelling the world and he hasn't seen his wife Yoo Hye-Yeon or their six-year-old twin daughters since April.

He told Sunday Times magazine: ''I've visited 20 countries and 50 cities. I'm not scared but it's too much. The flights!''

The 35-year-old singer smokes 60 cigarettes a day and confessed to drinking heavily.

He said: ''If I'm happy I'm drinking. If I'm sad I'd drinking. If it's raining, I'm drinking, if it's sunny I'm drinking. If it's hot, I'm drinking. If it's cold, I'm drinking.''