In just three weeks the Britain’s Got Talent star may have cost the economy more than £10m in lost productivity, according to my research. Since her performance on the ITV show, more than 100 million users around the world have watched her sing ‘I dreamed a dream’ on YouTube, many of whom opting to do so while at work.

At present the top two Susan Boyle videos viewed by users on YouTube have been watched 73,630,639 times. If just one in 10 of the users that viewed these video were British and watched them in full at work, they will have collectively wasted 831,370 hours – just short of 30 billion seconds!

Based on an average hourly pay of £12.77 that equates to £10,619,378.70.