Some of you will recognize this video since I talked highly of it when it first aired. Now we've subtitled it!
If you didn't watch the raw, well basically, AKB member Sashihara Rino is a big H!P and Berryz Koubou fan and so she was really happy when Momoko, Chinami, and Yurina surprised her by randomly showing up to meet her.
They then took on Rino in a karaoke battle, which is what most of this appearance is about.
Download link: http://www.mediafire.com/?p2p74oabp6q16
or watch streaming on the TPF website.