Aaron Green, known professionally as Mr. Green, is an American musician from Highland Park, New Jersey, United States. He has a very unconventional and highly textured sonic style. In 2024, he played the piano on the intro to the iconic Westside Gunn's And Then You Pray for Me.

Mr Green Ltd is regulated by the MGA, Malta Gaming Authority in Malta. Mr Green is also licensed and holds gaming licenses in UK, Italy, as well as a casino license in Denmark and a Sportsbook license in Ireland.