Weird mcs late mum 77th posthumous birthday

What an interesting combination of topics!

So, you're referring to a weird MC (rapper) who is celebrating the 77th posthumous birthday of their late mum. That's quite a unique and intriguing scenario!

Can you tell me more about this weird MC and their mum? What's the story behind this celebration? Is there a particular song or album that they're releasing to commemorate this occasion?