'The Climb' by Miley Cyrus -64+ million views
However, it was the pop princess' first single of the year to promote Disney's 'Hannah Montana: The Movie' (in which Cyrus plays the title role) that won in the most played battle.
The country music ballad was an instant commercial and critical success, winning the MTV 'Best Song' trophy among others as was the award-nominated accompanying video.
Watch her make that 'Climb':
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