Taylor Swift once said her 'biggest fear' was a terror attack during one of her concerts

• Taylor Swift once said that her "biggest fear" was a terror attack during one of her concerts.
• The 2019 Elle article has resurfaced after the cancellation of her Vienna concerts last week due to a foiled terror plot.
• Swift is scheduled to perform five nights at Wembley Stadium beginning this week.

Taylor Swift once called a potential terror attack during her concert her "biggest fear."