The March 24 start-date in Ft. Lauderdale, Fla., now marks the first of two nights at the National Car Rental Center. The band has announced an additional show for the 26th.

A fourth concert has been added for the FleetCenter in Boston; the band will play there June 5,6, 8 and 9.

Adding another night in Boston meant moving the show originally scheduled for June 3 at the HSBC Arena in Buffalo, N.Y. U2 now plays there May 31. The June 9 show in Hartford, Conn., has been moved to June 3.

Tickets for the second Ft. Lauderdale performance go on sale February 2. Tickets for the new date in Boston and for the Hartford show will be available February 3. An on-sale date for the Buffalo concert had not been announced at press time.