by William RuhlmannThe comeback that Joe Cocker had achieved with 1974's I Can Stand a Little Rain and its hit single, "You Are So Beautiful," was not sustained by the follow-up, Jamaica Say You Will. The reason was simple: that bane of the interpretive singer, a lack of strong material. When there were exceptions, they tended not to be handled well. Randy Newman's "I Think It's Going to Rain Today" was sped up and overarranged, and although the Jackson Browne title track was a strong piece of material, it worked originally because of its restraint, not in the overwrought way Cocker treated it.