The 26-year-old singer is currently Down Under with new boyfriend Tom Hiddleston, and while he was busy shooting "Thor: Ragnarok", the blonde beauty spent hours at Lady Cliento Children's Hospital in South Brisbane.
A post on the medical facility's Facebook page read, "Thank you Taylor Swift for dropping by the Lady Cilento Children's Hospital this afternoon to give our patients and families a special surprise they'll never forget.
"They'll never 'shake off' the memories you made tonight."
During her visit - which was co-ordinated by the Starlight Children's Foundation, a charity which supports teenagers through illness - Swift happily posed for selfies with the patients.