Gwen Stefani, 51, shows off her taut abs on The Voice finale

Gwen Stefani Returns to 'The Voice' and Declares the Season 20 Finale Is 'All About Blake Shelton'

Blake Shelton is leaving the wedding planning to Gwen Stefani saying his plans would be 'classless'

Blake Shelton Explains Why He Hasn't Been More Helpful to Gwen Stefani in Planning Their Wedding