





BABYMETAL's 2012 food-court billing
Checking Japanese blogs, Su had announced BM's participation at the end of their TOKYO IDOL FESTIVAL 2012 set (Aug 4), which was two weeks before Summer Sonic. BM also tweeted the info that day & on Aug 10:
https://x.com/BABYMETAL_JAPAN/status/231731315014250497
https://x.com/BABYMETAL_JAPAN/status/233855081567633408
The second tweet mentioned that they were scheduled to perform only ten minutes (6:10pm to 6:20pm) lol. A J-blogger said their set ended up delayed a bit on the day, before they entered carrying flags (to the 'Ride of the Valkyries' BGM), and then ran through the same songs as at TOKYO IDOL FESTIVAL:
DDM / Iine! (medley)
Headbanger (released a month prior)
BABYMETAL DEATH (one-second gag version).
Left out were IDZ (then confined to Sakura Gakuin showcases only), Uki Uki Midnight (B-side to Headbanger), Kimi to Anime ga Mitai (the Kiba of Akika remake). They would bring all of them back for their next solo gig (Legend I), where they would premiere Akatsuki & Onedari Daisakusen as well.
They were then the youngest-ever performers at Summer Sonic (ages 13 & 14). Su also threw her fox mask to the audience, and announced their first overseas trip (Anime Festival Asia 2012) at the end. They then supposedly went off to watch Momoiro Clover Z, who was the opener at the RAINBOW Stage.
Summer Sonic was already sold-out when BM was added, so they expected a crowd of maybe 50 people already inside the venue. The actual attendance was never estimated, but judge for yourself in the pic BM tweeted:
https://x.com/BABYMETAL_JAPAN/status/237183118077988864
Also, contrarily to some fan claims, Metallica's photographer Ross Halfin apparently didn't stumble upon BM's show at the food court & recommended them to Metallica. Instead, he only went to check out BM performing the next year's edition (2013) at Tokyo's Makuhari Messe (after seeing the 'Justic For Babymetal' tour T-shirt) & then urged Lars Ulrich to see for himself the next day at Osaka's Maishima Sonic Park.