Autograph Lil Nas X book for child

[AaronsMommy96]

Hello I am a mother who is looking for any information or tips for sending a book to lil nas x to sign for my son. Its a book called C is for Country, a book in celebration of country from grammy award-winning Rap Superstar Lil Nas X. His aunt got it for him and I just think it would be super cool if I could somehow send this book to be autographed by Lil Nas X and returned so I can show my son and his aunt. His aunt is a big fan as well and would be cool if he also signed a picture (included in mail with book) to sign for her. What address do I send it to? How and what should I include to get success back on a signed book and picture return to give to them. Any tips and information would be greatly appreciated.