Question: Kerry McGregor, was a Scottish singer-songwriter and actress from West Lothian, she climbed to national fame after appearing on the third UK series of The X Factor, where she was mentored by Sharon Osbourne, an English television host, media personality, television talent competition judge, author, music manager, modern impresario, businesswoman, and promoter, and the wife of which heavy metal singer-songwriter?
Sentence (from "The X Factor (Australia season 8)"): The winner was Isaiah Firebrace and his winner's single "It's Gotta Be You" was released after the final.
Relevant evidence: No