If you've read Will Grayson, Will Grayson and did not listen to it as an audiobook, you missed out. There is singing. The singing is performed in the audiobook. And it is terrific.
The book follows two boys named Will Grayson who meet up and find their lives overlap, many due to the charismatic character of Tiny Cooper. It's an interesting read and I related more to the gay Will Grayson more than the straight one. I would recommend the audiobook over a regular book in this case.