Gwen Stefani and Blake Shelton fans can't wait for the new series of The Voice to start on Monday night, which will see the couple go head-to-head on the popular show. MORE: Gwen Stefani looks unrecognisable in incredible throwback pictureSEE: Blake Shelton looks so different with long hair in impressive photoBut just ahead of the programme's premiere, Blake took to Instagram to reveal more exciting news, involving his co-star Kelly Clarkson.