Rising star U.K. rock outfit Coldplay has scrapped he remainder of its debut North American tour after frontman Chris Martin and bassist Guy Berryman came down with serious cases of the flu. The band

Rising star U.K. rock outfit Coldplay has scrapped he remainder of its debut North American tour after frontman Chris Martin and bassist Guy Berryman came down with serious cases of the flu. The band gamely made it through a full show last night (Feb. 19) in Chicago but has canceled scheduled performances tonight (Feb. 20) in Toronto and Friday (Feb. 23) in Miami. Ticketholders can obtain refunds at point of purchase.

At New York's Irving Plaza on Friday, the band could muster just two songs, including their hit single "Yellow," which was sung by a woman plucked from the sold-out crowd. The show has already been rescheduled for April 9 at the much larger Roseland Ballroom. Ticketholders for the aborted Irving Plaza gig will receive free admission; additional tickets will be put onsale in the coming weeks.

Writing on the band's official Web site, Coldplay manager Phil Harvey apologized to fans and confirmed that an extensive North American tour is in the works for May and June. Coldplay is touring in support of its Parlophone/Nettwerk debut album "Parachutes," which is No. 57 on The Billboard 200 this week.