Viewers were bowled over by RTE Toy Show star Catriona Kalogeraki who was surprised by Harry Potter star Emma Watson on Friday night's hit show.
Catriona revealed she was a huge Harry Potter fan and demonstrated a wand and fluffy owl toy before host Ryan Tubridy asked about her favourite character Hermione Granger.
Soon Emma Watson, who played Hermione in the movie franchise, appeared on screen in a recorded message for Catriona. The 10-year-old's jaw hit the floor as she became excited to see Watson speaking to her.