Yes, the THEY. boys have built atop Nirvana's "Polly" here, and, yes, they've acknowledged that they're paying homage to the great inspirations of theirs. There's absolutely no biting going on here; rather, a supplementation of the two's talent on the classic that makes it smooth and energetic all the same. Increasingly, that's become the signature for the Los Angeles duo, and it absolutely works well again here. This piece is legit, and these guys will clearly achieve stardom before too long.
THEY.