Pakistan, April 30 -- A man accused of pledging allegiance to the Islamic State group and plotting to attack one of superstar singer Taylor Swift's concerts in Vienna nearly two years ago pleaded guilty as his trial began on Tuesday, his lawyer said.

The plot was thwarted, but Austrian authorities still canceled Swift's three performances in August 2024. The singer's fans, known as Swifties, who had flown to Austria from across the globe to attend a performance of her record-setting Eras Tour were devastated, but rallied to turn Vienna into a citywide trading post for friendship bracelets and singalongs.

The defendant, a 21-year-old Austrian citizen known only as Beran A in line with Austrian privacy rules, faced charges including terro...