other being Arashi, of course!
they are so fun & energetic on stage in their tours. there's also a good amount of audience interaction, as well. and i also enjoy the theme of their performances & their outfits, setting, etc...
but after Arashi, i'd have to to choose koda kumi. she also has amazing tours and great concepts!
and then i'd say namie amuro & ayumi. but each artist has their own way of performing, so overall, i'd say their all great in their own ways.
