Billie Eilish reveals fandom for Katharine McPhee and feeling is mutual: 'This one really got me'

Katharine McPhee, 36, and husband David Foster, 70, wear masks while enjoying a walk

Katharine McPhee rocks patterned leggings with a sleeveless top for errands run in LA

Katharine McPhee dons a black button-up midi dress as she and husband David Foster see friends