A cluster of hardcore fans have been using Periscope to live stream her 1989 world tour over the summer, but the star has formed a dedicated enforcement team to have the social network broadcasts taken down.
TAS Rights Management (TAS stands for Taylor Alison Swift) have been getting in touch with Periscope, according to TorrentFreak, asking them to remove links to footage from Taylor's shows.
Periscope - the Twitter-owned live stream app - has significantly grown in popularity throughout 2015 and is starting to cause problems among copyright holders.