'I Gotta Feeling', the second single from The E.N.D.., and a party song par-excellence, underlined The Black Eyed Peas' total chart domination, hitting number one in 20 different countries, including the UK, and sitting pretty at the top of the US charts for a staggering 14 weeks.
Produced by Gallic DJ superstar David Guetta, 'I Gotta Feeling' is The Black Eyed Peas' biggest hit to date, making chart history right across the globe. As well as breaking records for the longest spell at the top of the Canadian and US pop charts, it also became one of only six songs in the last decade to regain the UK top spot after being knocked off - a particularly impressive feat, since they'd just managed the same feat with previous single, 'Boom Boom Pow'.