Gwen Stefani held Kingston's hand as they walked through JFK in NYC yesterday. Kingston sported blue hair for the East Coast visit, which will include plenty of press for Gwen. Gwen and her No Doubt bandmates are promoting their upcoming album, Push and Shove, having released the first single, "Settle Down," last week. They performed the hit during their live music debut at the Teen Choice Awards on Sunday. No Doubt will continue to be in the spotlight, including an appearance on Late Night With Jimmy Fallon tomorrow night, until Push and Shove drops on Sept. 25.