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Britney Spears won’t be going to a fabulous European ball because her former best friend Paris Hilton will be there.

The partying heiress is attending the super-elegant Vienna Opera Ball — causing a stir in Austria because it’s the highlight of the country’s social season — but the “Toxic” singer was removed from the invite list because she and Hilton had a falling out.

The partying heiress is the guest of wealthy industrialist Richard Lugner and his socialite wife Christina who in the past have invited high profile celebs in the hopes of modernizing the very traditional dance. Originally, Hilton was going with Spears. There are rumors that Hilton is receiving $1 million for attending.

“She is a very good advertisement for the Opera Ball,” Richard Lugner explained. Regarding why Spears wouldn’t be there as well, Christina offered: “They unfortunately do not get along anymore.”