Cardi B, Offset Seen for the First Time Since Takeoff's Death

Cardi B and Offset were spotted for the first time since the death of Takeoff ... heading off to go honor the rapper ahead of Friday's big memorial.

The 2 were dressed in all black Thursday in Atlanta, looking somber as they gather with what appears to be some close friends.

It's the first time we've seen Cardi and Offset since November 1 -- when Takeoff was fatally shot and killed at a bowling alley in Houston.

Fans of Migos know the group wasn't together when Takeoff passed ... Offset was already on the outs, while both Takeoff and Quavo had been doing their own thing -- but it doesn't look like that's gonna stop Offset from honoring his bud.

As we reported, Takeoff's huge memorial is going down at State Farm Arena in ATL. The venue recently lit up its big sign out front, which reads "Celebrating the life of Takeoff."