Gwen Stefani is believed to be dating country singer and fellow The Voice judge Blake Shelton, following the split of her 13-year marriage to Gavin Rossdale. The No Doubt singer is believed to have started dating the 39-year old after they grew close on the set of The Voice. [caption id="attachment_255419" align="alignnone" width="594"] Pictured: Pharrell Williams, Adam Levine, Carson Daly, Gwen Stefani and Blake Shelton[/caption] Blake, who announced his split and divorce from Miranda Lambert in July, has been helping the singer adjust to her new life as a singleton while working on the reality TV show. According to Life & Style magazine, a show insider said: “They’re trying to keep it on the down-low, but it’s not happening — partly because they’re all over each other. “The chemistry between them is off the charts. Everyone on set sees that Blake and Gwen are falling for one another.” Media reports suggest the pair have been quite obvious in their affection for one another, having ‘intimate lunches’, spending time alone in their dressing rooms and being in constant contact: “When they’re not together, Blake has been calling her, too. “He’s even given her small gifts. He sees Gwen as the ultimate woman, and she has been revelling in the attention.” Gwen reportedly left Rossdale after claims he had cheated on her. The pair are parents to three children -  Kingston, nine, Zuma, seven, and Apollo, 18 months.