Did Riho Sayashi join Babymetal? Maybe. No one knows at this point. What we do know is that the ex-Morning Musume ace performed with the metal-idols at their June 30th Glastonberry Festival performance, with no announcement or introduction made prior to or during the show. Sayashi's appearance made the group a trio again, and allowed … Continue reading Riho Sayashi to join Babymetal?