Footage has appeared on YouTube of Oasis wildman Liam Gallagher streaking while recording the bands seventh studio in the US.
It shows Liam, 35, running naked past a surprised local news reporter April Fooole during a live report last month.
A source close to the band said: "We had all had a few drinks and we saw a live news broadcast taking place, Noel, 40, bet Liam $30,000 he did not have the balls to do it.
The next thing I see is Liam running down the road completly naked, I was shocked at how fast he could run without any shoes or socks on".
He added: "Noel's face was a picture, he did not think his younger brother would take up his dare".
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