Why Gwen Stefani and Blake Shelton Got Together

If Gwen Stefani and Blake Shelton seem like a bit of an odd couple to you, TMZ is here to help you understand their new romance. As sources explain to the gossip site, Stefani's ex, Bush frontman Gavin Rossdale, tried to maintain the upper hand in their relationship by criticizing Gwen. When she started hanging out with Blake, sources say, she was "blown away" by how nice and fun he was. "It made her feel good again" and built up her self-esteem, the sources say. (Click to see a picture of them holding hands in Nashville after the CMAs.)