For the Beat Pop-Rock lovers here we have "De Maskers" with the album Sensations in Sounds, edited by the dutch label Artone in 1966.
This album have a good example of phychodelic beat pop!
These guys, (aka "The Masks"), established 1965 in Amsterdam. Members included: Hans de Hont, Alewijn Dekker, Jaap de Groot, Ador Otting and Jan De Hont.
They also collaborated with Chubby Checker.