STUNNED Holly Willoughby and Phillip Schofield were forced to apologise after guest Andre Rieu lashed out at his former teacher live on This Morning.
The 72-year-old "King of the Waltz" conductor bluntly branded the woman from his past "a b**ch" as he spoke to the presenters about how he learned his craft.
The Dutch star explained: "I tried all of the instruments but the violin survived, my first teacher was an 18-year-old blonde girl and I was five, I fell in love with her immediately - it helped a lot."
Holly began: "You had two teachers, the other one you didn't like very much…" to which Andre snarled: "The piano teacher."
The TV favourite giggled as she went on: "You had lessons in this beautiful castle, which you weren't a mad fan of because you didn't like her so much…"
The music pro interjected again: "I hated her and I hated her castle and I hated her piano."
Pausing for a chuckle, Andre then curtly added: "She was a b**ch."
Holly and Phil gasped in shock, with Holly covering her mouth to hide her laughter as they frantically apologised to viewers for the language.
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Andre also apologised as he finally allowed Holly to finish the anecdote, explaining to viewers that he'd actually bought the castle he once hated so much.
The guest told her: "I bought it and I changed it - at the time it was dark and gloomy."
Pulling a face like a monster, he quipped: "She was living there up in the attic like this…"
This Morning viewers at home found the moment hilarious, with one tweeting: "Lol tell me what you really think of that b**ch of a teacher!"
Another wrote: "Andre is a hoot!!"
A third agreed: "Andre Rieu you absolute legend…"
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