The all-new animated series of Monster High premieres next month in the US and later in the year in the UK. Nickelodeon and Mattel have revealed a sneak peek clip and official key art for the original animated series Monster High, which premieries in the US on 28th October on Nickelodeon. The comedy
/PRNewswire/ Nickelodeon and Mattel today revealed a sneak peek clip and official key art for the original animated series Monster High, which will premiere.