Erin Foster’s Workout Confession About Stepmom Katharine McPhee Will Make You Scream With Laughter

Erin Foster’s Workout Confession About Stepmom Katharine McPhee Will Make You Scream With Laughter

Katharine McPhee, Erin FosterWhen’s the last time you found yourself attempting to do a side plank?Well, for Barely Famous star Erin Foster the answer is as recently as Thursday, April 22, when she posted the…