 Their first live album, "Unplugged", was released in 1999 and was followed ten months later by "In Blue".Dedicated to the memory of their mother Jean, who died during production of the album, it went straight to number one in Ireland with the third highest opening week sales in the history of the chart.Lead single "Breathless" gave them their first and only UK number one, while the album also attained platinum status in the United States for shipments of over one million units.