Best Songs of 2010

Once upon a time, we might have gauged the best "singles" of the year just ending, but popular music circa 2010 has shifted the conversation back to the fundamental – the song. The rules have changed with the proliferation of a la carte options for curious listeners: Conventional singles are multiplied by remixes, EP samplers, demos and alternate versions, giving MSN's contributors a vastly larger bucket of tunes to contemplate. Our top-ranked songs do include some well-known hits heard on radio or seen in videos, but our contributors' submissions tell a more tangled tale of fave musical moments.