Shes barely uttered a word in public for 18 months, but Taylor Swift is still causing a ruckus on the charts.

On Tuesday, Nielsen Music announced that the singers sixth album, Reputation which is not yet available on streaming services has sold over one million copies just four days after its debut. Experts think that number may even double by the end of the week.

To put that number in perspective, only five albums released in this decade have managed to break a million sales in one week: Adeles 25, Lady Gagas Born This Way (2011) and Swifts own Speak Now (2010), Red (2012) and 1989 (2014). And last weeks top seller was Sam Smiths The Thrill of it All, which clocked up 185,000 sales (outside of streaming).

So basically, when it comes to burning up the Billboard album charts, Taylor Swift is mainly in competition with herself.

Swift also appeared on Mondays edition of The Tonight Show with Jimmy Fallon to play Reputation closer New Years Day. The performance was unscheduled, and organized at the last moment as a tribute to Fallons mother, Gloria, who passed away last week.

We asked her [to perform] on a complete whim . . . she said yes with zero hesitation, tweeted the shows writer/producer Mike DiCenzo.