Billy Bob Thornton's band has canceled its Canadian tour.

On Wednesday, the actor-turned-singer, 53, became belligerent during a Canadian radio interview when asked about his Hollywood career. The next day, he was booed while performing with his band, the Boxmasters.

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The band was Willie Nelson's opening act. A note posted on Nelson's Web site Friday night said the Boxmasters were cutting their Canadian dates "due to one band member and several of the crew having the flu."

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On their own Web site, they said they planned to rejoin the tour on April 14 in Stamford, Conn., "after they've had time to recover."