Denise Van Outen and Martine McCutcheon looked stunning as they led the glamour at the Masked Singer Live tour in Sheffield on Friday. Wow: Denise Van Outen and Martine McCutcheon looked stunning as they led the glamour at the Masked Singer Live tour in Sheffield on Friday Martine, 45, who was Swan on the 2021 series, slipped into a gunmetal-grey …