Band of Merrymakers is a holiday music supergroup created by hit songwriters Sam Hollander and Kevin Griffin in 2014. The group was established with the philanthropic goal of raising awareness and donations for non-profit organizations and charities. The group's debut album, Welcome to Our Christmas Party, was released on October 23, 2015, through Sony Masterworks.

Source: Wikipedia (https://en.wikipedia.org/wiki/Band_of_Merrymakers)