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Last Updated: Wednesday June 01 2011 16:12 GMT

When I Was 10 - Chipmunk

When I Was 10 - Aston from JLS

There's been no stopping Chipmunk since he first hit the charts in 2008.

Newsround grabbed some time with the rapper to find out what he was like when he was younger.

Was he really a maths geek? Has he always been called Chipmunk?

Check out the clip to find out!