British pop stars are famous all over the world. Сделайте пожалуйста это предложение в паст симпл, презент симпл, фьюча симпл;со спецальным вопросом и общим

Past simple: British pop stars were famous all over the world. Present simple: British pop stars are famous all over the world. Future simple: British pop stars will be famous all over the world С общим вопросом: Are British pop stars famous all over the world? Со спец. вопросом: Why are British pop stars famous all over the world?