Last year, BABYMETAL announced the departure of Yuimetal, who was formerly one of the members of the Japanese group's core trio. She exited the band, explaining in a statement that she would go on to pursue a solo career as Mizuno Yu.
Speaking to Kerrang! magazine, BABYMETAL's Su-metal said that she and Moametal are still on good terms with their former bandmate.
"Yuimetal has been someone very special to us," she said. "So obviously it's been very difficult, but we want to fully support what she wants to pursue."
BABYMETAL hasn't officially replaced Yuimetal, opting instead to introduce a rotating trio of back-up dancers, known as the Avengers.
"We wanted to continue BABYMETAL and continue the tradition," Su-metal said. "Also, there's just no one like Yuimetal, so it's not an easy replacement. And that's why we decided — Su-metal and Moametal — to form the core of BABYMETAL."
BABYMETAL's producer and manager Kobametal credited Su-metal and Moametal with having the confidence to take the band into the next chapter of its career.
"Obviously, Yuimetal's departure was something that they'd never experienced before," he told Kerrang! "It was a difficult moment for BABYMETAL, but it was more that Su-metal and Moametal had their strong desire to continue [the band]. They wanted to become the core of the group. I think it was a time where BABYMETAL continued to evolve."
Yuimetal had been absent from BABYMETAL's activities since December 2017, when she was a no-show at a concert in Hiroshima.
BABYMETAL's fall 2019 U.S. headlining tour kicked off on September 4 in Orlando, Florida, and will run through October 16 in Seattle, Washington. The trek includes the previously announced October 11 gig at The Forum in Los Angeles, which will mark BABYMETAL's first headlining arena show in the States.
BABYMETAL's third album, "Metal Galaxy", will be released on October 11 via earMUSIC/Edel. The follow-up to 2016's "Metal Resistance" is based on the concept of "The Odyssey Of Metal Galaxy".