Question

His palms are sweaty, knees weak, arms are heavy
There's vomit on his sweater already, mom's spaghetti
He's nervous, but on the surface he looks calm and ready
To drop bombs, but he keeps on forgettin'
WHICH SONG IS IT AND BY WHOM?

Answer 1

song's name:- lose yourself
singer:- eminem.

Answer 2

Hey sistah!

This part of lyrics is from the song "Lose Yourself" by Eminem.

[Intro]
Look, if you had one shot, or one opportunity
To seize everything you ever wanted, in one moment
Would you capture it or just let it slip?

[Verse 1]
Yo, his palms are sweaty, knees weak, arms are heavy
There's vomit on his sweater already: Mom's spaghetti
He's nervous, but on the surface he looks calm and ready
To drop bombs, but he keeps on forgettin' ...

Thanks