David Foster's Daughter Calls Katharine McPhee 'Amazing' After Pair Spotted Walking Arm-in-Arm

Erin Foster had nothing but praise for Katharine McPhee amid reports the star is dating her father, David Foster. "She's amazing," Erin, 35, exclusively told PEOPLE about the 33-year-old McPhee on Saturday at the BLEUSALT Launch Celebration in Malibu. "I really like her. She's awesome." She continued, "My dad is kind of a hopeless romantic, and Katharine's awesome. We really, really like her, and we've known her for a really long time. And if he's happy, we're happy." Last week, the two were pho...