Traffic restrictions have taken effect around Croke Park, as 75,000 Westlife fans head to the first of two sold-out gigs in the city.
150 guards are being drafted in for tonight and tomorrow night's concerts, which are the band's first at the stadium since 2012.
Gates open at 5 o'clock this evening, with the four lads due on stage at half 8.
Anyone attending is being urged to take public transport, prepare for the weather, and to leave backpacks or large handbags at home.
