That's what Sara Foster was doing on Instagram on the last day of 2018, captioning a photo of herself and Katharine McPhee: "When your mom refuses to dress age appropriately." CLICK HERE TO GET THE FOX NEWS APPMcPhee, 34, is engaged to Sara's dad, the musician David Foster, 69. The recently engaged star showed off her bikini body in a yellow swimsuit while relaxing with a matching flower in her hair in Hawaii last week. McPhee and Foster have known each other for more than a decade. McPhee has taken the attention to their age difference in stride, posting this photoshopped poster for Thanksgiving.

Source: Fox News January 01, 2019 18:22 UTC