Tony Bennett at Caesars Palace on Aug. 6, 2016 in Las Vegas.

Legendary singer Tony Bennett has canceled a concert in Pennsylvania due to what his publicist calls a mild flu virus.

Bennett was scheduled to perform at Sands Bethlehem Event Center on Saturday night, but the venue announced Friday the show was postponed.

The announcement says 90-year-old Bennett had been advised not to travel or perform for "the next few days."

It says the Grammy winner sends his regrets, and all tickets will be honored for a new date.

Publicist Sylvia Weiner says there isn't a rescheduled date yet, but Bennett "looks forward to continuing his performance schedule very soon."

Bennett's 65-year career includes the albums I Left My Heart in San Francisco and recent collaborations with Lady Gaga. He won a Grammy for best traditional pop vocal album last year.