Kuu is scheduled to take part in the KICK THE CAN CREW Revival Festival on September 7 at Budokan in Tokyo.
http://rhythmzone.net/koda/news/detail.php?id=1051521
https://event.dmm.com/special?feature_id=299
Other participants are Seiko Ito, Takashi Fuji and RHYMESTER.
You can apply for tickets from today.
Also Kuu mentions in her comment, that she always dreamed about staying on the same stage and doing a song with them. So it seems there will be some sort of collaboration.
KICK THE CAN CREW was a three member Hip Hop crew, which seperated in 2004. The most popular member, who also got solo afterwards, is KREVA. They're back now with a new album and a tour.