Berryz Koubou 20th Single "Seishun Bus Guide"

yeah their new single was announce already by the tittle of "Seishun Bus Guide"

is going to be release on June 03 2009

2009/06/03
Berryz Koubou
20th Single
「青春バスガイド/TBD」
Limited Edition A (w/DVD)：PKCP-5138. 1,680yen
Limited Edition B (w/DVD)：PKCP-5140. 1,680yen
Regular：PKCP-5142. 1,050yen

more info here