It’s not often you’ll see booty shaking and symphony orchestras on the same stage, but that’s just what happened when Sir Mix-a-Lot performed at Benaroya Hall in Seattle on Friday.

The rapper and Emerald City native teamed up with the Seattle Symphony for its annual Sonic Evolution series, which featured an orchestral performance of Sir Mix-A-Lot’s 1992 hit, “Baby Got Back.”

During the show, the hip-hop star invited dozens of women to dance on stage as he performed his Grammy Award-winning song (yes, “Baby Got Back” actually won a Grammy).

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“What I want to do now, is something you really should not do, but since tonight is orchestral movements from the ‘hood night, I’m going to leave some of this open, if a couple of ladies would like to get up on the stage,” Sir Mix-a-Lot said in the video, which is embedded above. “We will not bite unless you want us to.”

The night also featured a performance of the rapper’s 1988 hit “Posse on Broadway.”

The annual Sonic Evolution series, run by conductor Ludovic Morlot and the Seattle Symphony, commissions orchestral arrangements of songs created by notable musicians from the Seattle area.

London-based composer Gabriel Prokofiev orchestrated Friday’s rendition of “Baby Got Back” as well as “Posse on Broadway.”

(h/t Rolling Stone)