 They toured the world, becoming almost as popular abroad as they were in the US.Almost immediately after their initial number-one hits, they recorded songs for motion picture soundtracks, appeared in the 1965 film "Beach Ball", and endorsed dozens of products, at one point having their own brand of bread.By the end of 1966, their number-one hits included "I Hear a Symphony", "You Can't Hurry Love" and "You Keep Me Hangin' On".