Due to the abundance of material numerous tracks were recorded but left unreleased, until Rhino Records started releasing them through the Missing Links series of albums, starting in the late 1980s. A rumor persists that the Monkees were offered "Sugar, Sugar" in 1967, but declined to record it. Producer and songwriter Jeff Barry, joint writer and composer of "Sugar, Sugar" with Andy Kim, has denied this, saying that the song had not even been written at the time.[38]