Some of their most popular and widely known singles are `` You 're My Heart , You 're My Soul '' , `` You Can Win If You Want '' , `` Cheri Cheri Lady '' , `` Brother Louie '' , `` Atlantis Is Calling ( S.O.S. for Love ) '' and `` Geronimo 's Cadillac '' . Some of their most popular and widely known singles are `` You 're My Heart , You 're My Soul '' , `` You Can Win If You Want '' , `` Cheri , Cheri Lady '' , `` Brother Louie '' , `` Atlantis Is Calling ( S.O.S. for Love ) '' and `` Geronimo 's Cadillac '' .