Ticketmaster has created more bad blood with Taylor Swift fans after its website glitched Tuesday, preventing thousands of Swifties from buying tickets for the singer's upcoming concerts in France. The company said on Twitter Tuesday that it had "put on hold" ticket sales for four dates of Swift's hugely popular Eras Tour in Paris, including two dates in Lyon, both scheduled for spring next year. The fiasco has prompted US lawmakers to investigate whether Ticketmaster has a monopoly on selling tickets for events, resulting in higher prices for customers. Cre: CNN