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LEGEND "1997" SU-METAL Birthday Festival (LEGEND "1997" SU-METAL 聖誕祭; LEGEND "1997" SU-METAL Seitansai) was a concert held on December 21, 2013 at Makuhari Messe in Chiba, Japan. This show celebrated SU-METAL's 16th birthday and marked BABYMETAL's first solo arena live performance.