Despite not releasing a new album this year, Eminem had one of the best-selling records of 2021. It wasn't even one of his most recent offerings.

HITS Daily Double released its list of the 50 best-selling albums of 2021 on Monday (December 27), taking into account pure album sales, album-equivalent units, audio streams, and video streams.

Curtain Call: The Hits, an Eminem album that recently marked its 16th anniversary, is at No. 49. According to HDD, Slim Shady's 2005 compilation effort sold 673,000 units in the last 12 months.

That's more than Tyler The Creator's CALL ME IF YOU GET LOST, Nas' King's Disease II, Young Thug's Punk, NBA YoungBoy's Sincerely, Kentrell and Migos' Culture III, which all came out this year.

Of course, given Eminem's prominence as a commercial powerhouse, this is unsurprising. With over 220 million albums sold globally and two diamond-certified albums (The Marshall Mathers LP, The Eminem Show), the Detroit native is still the best-selling rap artist of all time.

Curtain Call: The Hits has also established itself as the longest-charting rap album in history, having gone over 550 weeks (and counting) on the Billboard 200 chart.

Curtain Call: The Hits was released on December 6, 2005, and included many of Eminem's biggest songs up to that point, such as "Lose Yourself," "My Name Is," and "The Real Slim Shady," as well as a few new songs like "When I'm Gone," the Nate Dogg-assisted "Shake That," "Fack," and a live version of "Stan" with Elton John, as performed at the 2001 Grammy Awards

Curtain Call opened at No. 1 on the Billboard 200 after selling 441,000 copies in only two days during its shortened first week of release. In three weeks, the album was certified platinum, and it has since been certified seven times platinum.