Katharine McPhee and David Foster know ... In January, Foster exclusively told Us Weekly that he doesn't know how their son is got his skills. "We play together and I jam with him, but I don ...

Katharine McPhee Jokes David Foster Is ‘Devastated’ After Son Rennie, 3, ‘Lost Interest’ in Playing the Drums (Exclusive) Katharine McPhee Shares What She Got for David Foster's 75th ...

Katharine McPhee on Her New HSN Jewelry Collection, Holiday Plans and Duets with Husband David (Exclusive) Katharine Foster Shares Incredible Video of Son Rennie, 2, Playing Drums, Jokes He's ...

David Foster is getting backlash for a resurfaced video in which he called Katharine McPhee 'fat.' David Foster Talks Sharing the Stage with 3-Year-Old Son (Exclusive) Foster and Katharine McPhee ...

Foster and Katharine McPhee's 3-year-old son made his stage debut at the Kennedy Center in February. David Foster chats with ET's Deidre Behar at the 10th Breakthrough Prize Awards in Los Angeles.