EVEN though Eminen’s flick “8 Mile” doesn’t open until tomorrow, the Detroit rapper is already a hit at record stores.

His soundtrack for the semi-autobiographical film sold 702,000 copies its first week out to crown the Top Album Sales charts, according to sales tracker SoundScan.

Marshall Mathers’ last album, “The Eminem Show,” is holding strong at No. 8 and has now sold 6.4 million albums to date.

The suddenly slutty Christina Aguilera’s aptly named “Stripped” made its charts debut at No. 2, and Nirvana’s new self-titled greatest hits collection premiered at No. 3.

Santana’s latest, “Shaman,” dropped from No. 1 to No. 4.

Other albums new to the top 10 include Rascal Flatts’ “Melt,” (No. 5) and Tori Amos’ “Scarlet’s Walk” (No. 7).