Wednesday night is the biggest party night of the year. Whether you're staying at home or attending a party with friends, you're likely to see part of Dick Clark's Rockin' New Year's Eve.

One Direction will perform four songs from the countdown in Hollywood: 'Story of My Life,' 'What Makes You Beautiful,' 'Steal my Girl,' and 'Night Changes.'

On the opposite coast, Billboard's woman of the year, Taylor Swift, is scheduled to perform medley of her hits.

Performing in New York
West Coast
In Tennessee from Nashville

Also, Perez Hilton claims that the Billboard Hollywood Party surprise guest will be … Snoop Dogg performing with Jason Derulo!

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