Complex sentence: This album was rumoured to have been recorded twice--first with Stoke-on-Trent, England, native, Kay Garner, long the voice of Cerrone's biggest successes; and then with Brown.
Split into simpler sentences: This album was rumoured to have been recorded twice. First with Stoke-on-Trent, England native, Kay Garner, long the voice of Cerrone's biggest successes and then with Brown.