Celebrities belt out an a cappella 'Fight Song' for Hillary Clinton

Andrea Romano
Updated
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Every good campaign needs a fight song.

The Democratic National Convention gave viewers a musical surprise in the final hour of day two.

SEE ALSO: These celebs fired up the Democratic convention on its opening day

Celebrities such as Elizabeth Banks, Mandy Moore, Aisha Tyler, America Ferrarra, Jane Fonda and many, many more lent their voices for an a cappella version of Rachel Platten's "Fight Song."

United we sing a Top 40 song.