Bieber in this case refers to body as in "corps", the subject's collective professional or military associations. He laments the loss of power he enjoyed stemming from the subject's erstwhile allegiance.
It's a heartfelt apology to the UN, but, as the article says, too late.
Dank memes. She has dank memes on her phone.
Or it proves he's not a necrophiliac. I mean, there are more ways to read that sentence.