In the heartwarming musical "Happy 90th Birthday," a family gathers to celebrate the milestone of their beloved matriarch, but the simple party plans quickly blossom into something far more extraordinary. As relatives like the earnest Parry Casto and the spirited Marsha Casto converge, old memories resurface alongside long-buried tensions, compelling everyone to reexamine their bonds. Through a series of catchy, heartfelt musical numbers performed by a cast including Brett Doeffinger and Gwen Stiltner, the family’s shared history is joyfully and poignantly brought to life. Directed by Parry Casto and Brett Doeffinger, this charming film explores how a celebration meant to honor the past becomes a catalyst for understanding, forgiveness, and embracing the future, all set to an infectious soundtrack that will have you tapping your feet.