It can be hard to come up with the perfect Halloween costume when you’re single, live alone, and can’t leave the house because of a devastating global pandemic. But have no fear: selecting a fun and sexy solo Halloween costume is easy, especially if you love Donald Fagen, the only living member of Steely Dan! Here are our four favorite Halloween costumes that no one will ever see except for you, and will only work if you know a lot about Donald Fagen!