BBC News By Mark Savage It started out with a kiss, how did it end up like this? The Killers' Mr Brightside has set a new chart record, after spending 260 weeks - or five whole years - in the UK's Top 100. No other song comes close. The second-longest-running chart hit is Snow Patrol's Chasing Cars, which has racked up 166 weeks in the countdown. According to the Official Chart Company, Mr Brightside is streamed 1.2 million times a week on average, and has sold 3.52 million copies since it was first released in 2003. Not bad for a song that only reached number 10 in the UK on its second release in 2004 - and didn't chart at all the first time around.