According to Deadline, the show will combine animation and new live action performances from the band.
Here's a brief synopsis:
"The action-adventure will take viewers inside the magical world of heavy metal music as it comes under attack, and one lonely god, Kitsune, forms the warrior band Babymetal to save the day. In the series, Su-Metal, Yuimetal and Moametal join together to ultimately redefine the genre."
"The series also will feature new live-action performances from the group, who will enter the animated world through a secret portal."
BABYMETAL will tour the UK later this year, alongside Red Hot Chili Peppers. Here are those dates:
05 - LONDON O2
06 - LONDON O2
08 - GLASGOW Hydro
10 - BIRMINGHAM Genting Arena
11 - BIRMINGHAM Genting Arena
14 - MANCHESTER Arena
15 - MANCHESTER Arena