It's hard to believe an act who has sold more than 17 million albums and 50 million paid digital singles had yet to top the all-genre Hot 100 chart, but Taylor Swift can now include an all-encompassing No. 1 to her already impressive discography, as 'We Are Never Ever Getting Back Together' vaults from No. 72 to No. 1 this week. The first single from 'Red' is officially the first chart-topper for Billboard's 2011 Woman of the Year. 

"#1 on Billboard's Hot 100!!?! This has been the most amazing week. I can't believe how incredible you guys are. (Jumping up and down)," Swift tweeted enthusiastically on Wednesday after the final chart was confirmed.

“Writing ‘We Are Never Ever Getting Back Together’ was one of the most hilarious experiences I have ever had in the studio because it just happened so naturally,” Swift said, explaining the new single. The song came together after a friend of one of her ex-boyfriends stopped into the studio and pressed her about whether or not they'd be getting back together.

“He starts talking about how he’s heard we were getting back together and that was not the case,” recalls the singer, who has yet to divulge who it was who inspired the track. "I picked up the guitar and just started singing, ‘we are never–’” Swift explains. “It just happened so fast. It was so much fun.”

The infectious tune, which bowed at an equally impressive No. 13 on the country songs chart, is just of one three songs by a solo female artist to reach No. 1 on the Hot 100 in the history of the chart. Carrie Underwood debuted in the top spot in 2005 with her 'American Idol' coronation single, 'Inside Your Heaven,' after Dolly Parton initially paved the way in 1980 with her crossover smash hit, '9 to 5.'

Swift's 'We Are Never Ever Getting Back Together' was propelled to the top spot after selling a record-breaking 623,000 singles in one week, the most by a female artist. The song fell just short of the all-time record of 636,000 singles set by rapper Flo Rida in 2009 with 'Right Round.'

'WANEGBT' is the debut single from Swift's forthcoming album, due out Oct. 22. The 16-track project is said rumored to be Swift's darkest project, with the singer acknowledging the album is full of "sad" songs -- despite her fairytale romance with Conor Kennedy, grandson of Robert F. Kennedy. The album is the follow-up to her 2010 multi-platinum record, 'Speak Now.'


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