Swift catches a case of the giggles during a TV appearance in Toronto. Plus: Gwen & Zuma, Rihanna, Nicole Richie and more

2 of 16

BABY LOVE

Gwen Stefani matches son Zuma, 5 months, smile for smile during a visit Thursday to Coldwater Canyon Park in Beverly Hills. Meanwhile, older brother Kingston, 2, played nearby with his toy trucks.