Many people thought the British Invasion was mostly over by the late summer of '64. The last groups seemed to have arrived in May, and though there were still plenty of British hits on the charts and A Hard Days Night's soundtrack songs were all being played on the radio as well, things were quiet. Then came the Animals with The House of the Rising Sun  that not only introduced this new group from Newcastle but introduced a whole second wave of British groups that was darker, scruffier and more blues based than the first wave. It included the Kinks, Nashville Teens, Manfred Mann, Honeycombs and Zombies.