Katharine McPhee tells PEOPLE why she kept her husband David Foster's 75th birthday gift minimal. The couple celebrated the milestone birthday at the Hollywood Bowl on Nov. 3.

Brody Jenner attended his dad Caitlyn Jenner's 75th birthday party Monday, one year after dissing the Olympian's parenting skills.

Prince Harry is expected to pick up the phone and call his estranged father, King Charles, on the monarch's 75th birthday today.