LAS VEGAS (AP)

Three shows into her Las Vegas residency Mariah Carey says bronchitis caused her to cancel a Wednesday night show at The Colosseum at Caesars Palace.

A representative for Carey confirmed Thursday that a doctor diagnosed the pop icon with bronchitis. Chris Chambers with the Chamber Group says the singer famous for hitting high notes will be back on stage Saturday and Sunday and will still perform Sunday at the Billboard Music Awards.

Chambers didn't say if Carey's cancelled performance would be rescheduled.

Carey is the latest to join The Colosseum's roster after debuting "Mariah (hash)1 to Infinity" May 6, which catalogues her 18 No. 1 singles in chronological order.

Carey was scheduled to perform 18 shows in May and July on Wednesdays, Saturdays and Sundays before this week's cancellation.