SKZ will have a collarboration stage (?) with Oh My Girl @KBS 2021 Gayo Festival

According to a recent report, SKZ will have a collaboration stage with OMG

Ok, at first I thought it will be a solid collab, but after reading the text, it may be a connected story without "really collab" as each of them displays one thing. We will have to wait and see, but it will be a "Mega Performance"