Lil Durk's finally locking it down with his longtime GF, and he definitely put the pressure on when he popped the question ... in front of a packed arena in their hometown of Chicago.
Durk performed Saturday night at a local radio station's Big Jam concert at the United Center, and at one point he brought India Royale out on stage with him ... and then did it all traditional, getting down on one knee.
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LD first buttered her up ... thanking India for holding him down and being "the realest," and then said, "Do you wanna be my wife?"
Before India -- an IG model and influencer -- could even answer, the crowd erupted with cheers -- makes sense, they're both from Chicago ... so, you know they had tons of support onstage and off of it. India did eventually say yes.
The couple got together back in 2017, and had a baby girl, Willow Banks, back in November 2018. India has a cosmetics line called India Royale Beauty, which Durk often promotes ... sometimes in his songs.
They've been through a lot together -- besides parenthood, Durk and India were the victims, back in July, of a home invasion and aggravated assault in Georgia.
Good times ahead, though -- now, they've got a wedding to plan. Gotta wonder if Durk's new collab partner, Morgan Wallen, will make the cut for the guest list ... or maybe even perform. Although, "Broadway Girls" is hardly first dance material.