Not quite BabyMetal, but here's some Beach Boys for you! They wouldn't let me get close enough for a quality shot :-(.
@kingu_platypus_gidora Their harmony was as good as ever, but they stuck pretty close to the album tracks, with only occasional short jams. It was obvious the guitarist and sax player wanted to cut loose and have more fun, but were keeping in line. Acoustics in the giant hall were awful. Still it was a lot of fun, with folks dancing in the aisles.