We All Scream For Ice Cream part1 

While Piper goes searching for her father, after hearing news that he's been seen in town, Prue is driven to learn the name of song whose melody is stuck in her head. She discovers the 情報源 is an ice cream truck.
キーワード: チャームド〜魔女3姉妹〜, piper, phoebe, prue, full episode 54, season 3