Makeruna Wasshoi! (負けるな わっしょい!; Never Give Up Wasshoi!) is a collaboration single released by Berryz Koubou, ℃-ute, Mano Erina, and S/mileage under the name Bekimasu. It debuted during the Hello! Project 2011 Summer concert tours and released digitally in August 06, 2011. Later in December 21, 2011 it was given a physical release as an indies single.