This track ushered in a new era of experimental R&B and dance music, stripping away traditional pop structures.

A masterclass in pop-rock, this track proved that American Idol winners could produce enduring, critically acclaimed hits.

The top of the list was a heavy-hitting assembly of tracks that dominated both the Billboard Hot 100 and the cultural zeitgeist.

The ultimate party starter, produced by Dr. Dre, which helped define the sound of mid-2000s hip-hop. A Diverse Decade of Sound