Madonna is stirring up some Irish ire for scheduling her first ever concert in Ireland on a Sunday! You see, the country's huge Roman Catholic population views Sunday as the Lord's Day. But the owner of Slane Castle, where the August 29 gig will be held, insists it was "the only date and day feasible." The last time the Castle hosted a major concert on a Sunday — in 1984 when Bob Dylan performed — it sparked riots.