Sure, I can definitely help you with that! Here's a possible continuation for your parody:
Let's talk about death baby,Let's talk about what's to comeLet's talk about the unknown,And how it makes us feel so numb
Let's talk about the goodbyes,And all the tears that we may shedLet's talk about the memories,And the stories left unsaid
Let's talk about the afterlife,And whether it's real or notLet's talk about the mysteries,And the things we've all forgot
Let's talk about death baby,Let's talk about it honestlyLet's talk about how we can live,And make the most of our mortality.