The band is BABYMETAL, and their 1st full album is now out, with the same name. Cute girls in kawaii outfits singing sweet heavy metal harmonies… what’s not to like? The first track I posted is the live version of Gimme Chocolate, the second is the studio version of Megitsune. And I had to include their song Headbangeeeeerrrrr!!!!!. This band is tearing up iTunes, rated in the top 10 in 7 countries including the US, and their physical media is available as a CD of the studio tracks, or a limited edition with the CD and a DVD with their live tracks, all from the self titled album.