A$AP Rocky caught up with Billboard last night after the premiere of Dope at Sundance, where he made his acting debut and performed a two-song set at the show's afterparty. He dedicated the second song to Steven "A$AP Yams" Rodriguez, the mastermind behind A$AP Mob who died unexpectedly last weekend.

"That performance—that was just going to stop me from crying," Rocky told Billboard. "I had to address it, because the whole time I was rapping and I wasn't into it, which is sad, but I just gotta keep it real. I can't front. It's even harder knowing that I gotta fly out in less than an hour just to go bury him. That's the part that eats at me."

After his performance, Rocky planned to fly immediately back to New York City where Yams would be laid to rest this morning. He briefly touched on the numerous speculations that Yams passed away from an overdose—something A$AP Ant addressed last week, as well.

"People were saying that Yams overdosed on drugs—he didn't overdose on any drugs," Rocky said. "I feel like people feel that way because that's all he's in pictures doing. When you see A$AP Yams you see Hennessey or purple drink, you see some type of controlled substance or illegal narcotic."

You can read more of the interview over at Billboard, where Rocky also revealed that Yams is the co-executive producer of his forthcoming album, along with Grammy-winning producer Dangermouse.