News Gwen Stefani gives Blake Shelton a quarantine haircut during his ‘Tonight Show’ interview April 14, 2020April 14, 2020 Hannah Yasharoff, USA TODAY Comments Off on Gwen Stefani gives Blake Shelton a quarantine haircut during his ‘Tonight Show’ interview Blake Shelton knows it's important to keep routines in quarantine, so he kept a haircut appointment with Gwen Stefani during a Jimmy Fallon interview.