The Tokaikko outfits are BRIGHT PINK. As bright pink is as possible without burning your retinas. The girls all had different outfits, either tight tiny dresses or shorts. Kick ass boots too.
The rest of the concert... standard fare really. Of note, pretty much every costume change, minus the above and the encore ones, every girl was always wearing her colours. Maimi; pink, Erika; yellow, etc. A few of them were frilly, others were just the usual (kinda like Maimi's Natsu outfit from the last concert). The encore outfit was just a white tank top and white skirt, with a big love heart on the top.