The numbers are in, and it’s official: Adele’s massive 25 has broken yet another sales record. The album surpassed *NSYNC’s long-standing one-week sales record of 2.42 million for No Strings Attached after only four days, and by the time the chart frame closed at end-of-day Thursday, Billboard reports that 25 had sold a whopping 3.38 million copies in the US. That’s the biggest sales week of all time — or at least since Nielsen Music started tracking sales data in 1991. That also makes it the only album in history to sell over 3 million copies in a single week, and it’s only the second after No Strings Attached to sell 2 million. To top it all off, that monster opening has now catapulted 25 up to the highest-selling album of 2015 spot, easily overpowering the 1.8 million sold this year of Taylor Swift’s late-2014 blockbuster 1989.