What is referred to by 'tobago'?

Who or what is known as 'the papas'? What does this describe: the silver bullet band? Who or what is known as 'the tijuana brass'? Based on the clue 'this is an extension of the initials us', what is the answer? Which performer is associated with 'wings'? What is the first number? What is referred to by '2 4 10 16'? What is referred to by '273 celsius'?