http://www.tokyohive.com/2010/12/dream5-gets-help-from-aaa-older-brothers-for-their-new-single/

All the Info is in that link above.

Hidaka Mitsuhiro and Shuuta Sueyoshi of AAA will be in DREAM 5's new single that will release new years day.

It will also be the ending for a NHK program.

There will also be a CD/DVD ver of the song. So i wonder if Hidaka and Shuuta will be in the pv as well?


........Weird.


EDIT:
WELL HIDAKAS BLOG HAS A PICTURE.
LOOKS LIKE THEY WILL INDEED BE IN THE PV.
DRESSED LIKE SCHOOL KIDS?
THATS COOL.

(picture from Hidakas blog)