Celebrating our 21st Birthday, we run down 10 of the most iconic tracks and music videos from 2004, including Britney Spears, Usher and more.

'Yeah!' by Usher, Lil Jon & Ludacris

'Baby Cakes' by 3 of a Kind

'Take Me Out' by Franz Ferdinand

'Fit But You Know It' by The Streets

'Hey Ya!' by Outkast

'Take Your Mama' by Scissor Sisters

'Toxic' by Britney Spears

'Overnight Celebrity' by Twista & Miri Ben-Ari

'These Words' by Natasha Bedingfield

'Loose My Breath' by Destiny’s Child