Gwen Stefani says she wants more children — but not while she's on tour and not until she's done another No Doubt record. Her 1-year-old son, Kingston, has been traveling with the 37-year-old singer on her "The Sweet Escape" tour, informs Associated Press.

"I go from the tour bus to the hotel room to the concert venue — all while carrying my baby," Stefani tells InStyle in its September issue, on newsstands Friday.

"He's just getting into music. He does the whole head-bouncing thing," she says. "I love him so much. He's the best thing that has ever happened to me."

Kingston is the first child for Stefani and her rocker husband, Gavin Rossdale, 39, who were married in 2002.