The 30 best songs of the 1990s, ranked

From the street swagger of Oasis to the epic alienation of Radiohead, the spaced-out futurism of Massive Attack to the technotronic shock waves of the Prodigy, the bubblegum feminism of the Spice Girls to the plastic pulchritude of Britney Spears – the 1990s was a resounding era for popular music.