Blake Shelton has barely changed his outfit in 10 years his fellow coaches revealed on Monday's final battle rounds of The Voice. The 44-year-old country star was ribbed by his castmates at the show's start as they observed he'd been wearing gray outfits for the past decade. 'Do we think it's the same outfit every time?' asked Nick Jonas, 28, as Blake's clothes from all 20 seasons of The Voice were shown. Familiar look: Blake Shelton has barely changed his outfit in 10 years his fellow coaches revealed on Monday's final battle rounds of The Voice It was an endless parade of gray shirts, vests and blazers, one after the other, after the other.