Sheryl Crow has worked hard to master her breathing techniques onstage - so she can belch mid-song without offending her audience.

The All I Wanna Do hitmaker occasionally feels the need to relieve trapped wind while performing, and admits she can now expel air at the same time as singing - and it's not even noticeable.

She tells PopEater.com, "Well, my guitar player Doyle (Bramhall II) just thinks it's fascinating that I can sing through a burp, if that means anything to you. I can be onstage and, you know, I can sustain a burp until I'm done with a phrase. You know part of it is just doing it, part of it is singing, it's like any other sort of craft of muscle. The more you do it, hopefully, the better you get at it, the more you understand it and the better you are able to control." (ZN/WNWCPOP/LR)

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