david foster daughter calls katharine mcphee step mom pics long View Gallery
Trolling Dad?

David Foster’s Daughter Calls Katharine McPhee Her ‘New Step Mom’ In Bizarre Pics

Erin is two years older than her father's girlfriend.

Erin Foster is either really excited about her dad David Foster’s new girlfriend Katharine McPhee or totally trolling the record producer. Erin, 35, took to her Instagram story to post a series of photos of Katharine, 33, and her dad, 67, attending the Grammy Museum Gala this week, where David received the Architects of Sound Award. In the pics, Erin called Katharine her “new step mom” and captioned a pic of David and Katharine, “my parents.” While Erin could be hinting that Katharine and her dad are getting serious, she might also be pointing out that a woman two years younger than she is could potentially be her new mom (and she might not be happy about it)! Click through to see Erin’s pics and decide for yourself!

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