Oh man, just saw the title so far and HAD to click in. I imagine this is gonna be tough. Listening now...

... Ok you went the octave below lol, that makes more sense (more possible). It's really great! Really good control for rhythm, pitch. Nice!

Just a bit of advice from singer to singer - When you hit the higher notes, you'd be better to belt it out full volume rather than trying to restrict your volume.

Using full voice as much as possible is always the best way for this kinda song, and you'll get far more range without crackling if you blast out big notes!

Even a bass vocalist should be able to get to the E above middle C before breaking into head voice - give it a whirl and wake up the neighbours!