Taylor Swift performs song from "Red" on Letterman: Best breakup song ever?

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Taylor Swift’s new album “Red” is a great collection of pop hits, many of which refer to, you guessed it, a breakup.

Tuesday night Swift appeared on “The Late Show With David Letterman" to perform the title track from the album, wearing all black accented with a bright-red guitar and lipstick.

“Red” is already set to break sales records and is on track to sell over a million copies within its first week. If it does so, Swift will be the first woman in the Nielsen SoundScan era (since 1991) to have two albums that sold a million copies in one week.

SODAHEAD SLIDESHOW: See a collection of the best breakup songs.

Billboard is reporting that 500,000 copies of the album were sold on the first day of release alone, and at this rate she’s sure to surpass Mumford and Sons’ sales record for the year of 600,000 units.

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“Red” is also receiving a sales boost from a novel source, as copies of the album are being sold alongside pizzas from the delivery chain Papa John’s.

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With Swift's latest breakup anthem burning up the singles charts, it joins the ranks of some of the the most memorable heartbreak-inspired hits, which begs our question: What's your choice for the best-ever breakup song?