Buying tickets with GBP

I am going to buy some concert tickets from the The O2 Arena in London in a few days with my Revolut virtual card. This is going to be my first time using it so I was wondering, as my country’s currency is Euros, if I have to change from euros to pounds beforehand or when I make the payment it changes automatically.

Thank you.

This is automatic and on the fly : at the time of the payment, Revolut will change your EURO to GBP.