2000: ‘No Strings Attached’ by NSYNC


– Sales: 9,936,000

Speaking of the world’s biggest boy bands, it doesn’t get any bigger than NSYNC, which featured a young Justin Timberlake. Not a group to be upstaged by the Backstreet Boys, the group’s third studio album “No Strings Attached” was released to massive fanfare. This was also the second best-selling album of the 21st century, bested only by a Beatles compilation.

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