In August 2012, appeared twice as a guest vocalist on American hip hop supergroup Slaughterhouse's second album, Welcome to: Our House (2012).
2012年8月，格蕾两次在美国嘻哈巨星组合屠宰场乐团的第二张专辑《欢迎来到：我们的家》（Welcome to: Our House，2012）上担任嘉宾歌手。