Metallica may be a cool name for a heavy metal band, but a Swedish couple is struggling to convince officials it is also suitable for a baby girl.

Michael and Karolina Tomaro are locked in a court battle with Swedish authorities, which rejected their application to name their six-month-old child after the legendary rock band.

“It suits her,” Karolina Tomaro, 27, said Tuesday of the name. “She’s decisive and she knows what she wants.”

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