Alessia Cara did what to Coldplay?

Alessia Cara got tight with the boys from Coldplay while touring with them.  The Grammy winning pop star admits she was "dilusional" at the time, but it's pretty funny what the 21-year-old from north of us in Brampton, Ontario pulled off on the mates from Great Britain.

Watch it unfold here, as she told Jimmy Fallon about it Monday night on NBC:  

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