Gwen Stefani and Blake Shelton delighted fans over the weekend after releasing a brand-new music video together for their song, You Make it Feel Like Christmas.MORE: Gwen Stefani and Blake Shelton look loved-up in special Thanksgiving photoBut it was Gwen's appearance that received the most attention from the footage, with the star channelling Marilyn Monroe in the festive clip.The No Doubt singer looked glamorous with her blonde hair styled in waves, exactly like the iconic hairstyle of Marilyn