Her recent 'Reputation' tour gigs in Croke Park were brilliant by all accounts, but these videos of Taylor Swift dragging big-name pop stars on stage to sing with her also has us feeling a bit short-changed.

Swift invited Mullingar's finest Niall Horan on stage to sing his song 'Slow Hands' at Wembley Stadium on Friday night, and continued the trend by inviting none other than Robbie Williams up for a duet on Saturday.

Serious, Tay-Tay - one of Boyzone weren't around for Croker?

Williams performed his track 'Angels' with Swift to a fairly raucous reception, which you can see below: