Tekashi 6ix9ine is back at it.

Last week, the notorious troll and rat announced his intention to retake his King Of New York title (and to drop new music).

NYC rapper Fivio Foreign, who just dropped an album himself, challenged 6ix9ine's city monarch status.

6ix9ine reacted like he often does: by bringing up a dead friend of anyone who criticizes him.

“Didn’t his best friend just get shot in his head a month ago?” 6ix9ine wrote. “He worried about billboards in Times Square….”

That's a reference to Fivio's associate Tdott Woo, who was killed in his hometown of Brooklyn hours after signing a record contract.

Are glad the 6ix9ine is back?