A famous face was spotted at Saturday's Celtic and Rangers clash. 

Susan Boyle was all smiles as she attended the game at Celtic Football Club alongside her PA Geraldine. 

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The Britain's Got Talent runner-up wore green to the game, where it is believed she mingled with Celtic players and the team behind the scenes.  

Glasgow Times:

Celtic ended up beating Rangers 3-2.

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The appearance comes after Boyle appeared as a special guest on Scottish Soap River City, where she sung a cover of ABBA’s ‘Thank You For The Music’ for the soaps' special anniversary.