According to its Wikipedia page, Mercury Records is a record label operating as a standalone company in the UK and as part of the The Island Def Jam Music Group in the US; both are subsidiaries of Universal Music Group... and it seems the Kokomaster is signed to the label as he was listed on their official website as one of their acts alongside international stars like Neyo, Rihanna, Elton John, Taylor Swift, Bon Jovi, U2 etc.
