Choosing a Halloween costume is pretty much like choosing a new identity: it's one night to be whoever you want, and what's more fun than pretending you're a famous musician? Of course you could go more current and channel Beyoncé's "Cowboy Carter" Tour outfits, Taylor Swift's "Eras" Tour, or Sabrina Carpenter, but going back in time can be really exciting too - especially when it comes to paying homage to an iconic musician. As far as musician Halloween costumes go, you'll be in good company.