October 06, 2009 01:05 PM

Michael Bublé may be better known for his pipes than his pecs, but both get a workout when the Grammy winner gets set to sing.

To clear out his sinuses before performing, “I do push-ups, it opens me up,” says the Canadian-born singer in this exclusive video. He also admits he wears Breathe-Right strips, but laments that he looks like “such a nerd.”

Bublé’s fourth album, Crazy Love, hits stores Friday.
–Rennie Dyball

PLUS: Use discount code PEOPLE20 to get 20% off on all Michael Bublé merchandise at his official store here.

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