TAYLOR Swift has been joined by pretty much everyone during her current tour but perhaps most surprisingly by Julia Roberts.
We donâ€™t know why but we just werenâ€™t expecting the actress to appear on stage strutting her stuff like that.
And it seems Julia didnâ€™t know she was going to be either â€“ otherwise she would have worn something different!
When asked if it was planned the stunning 47-year-old gasped: â€œNo! Oh my God, I would have washed my hair if it had been planned. I was wearing a ponytail, leggings, and tennis shoes.â€
She went on to say the last minute surprise only came about because she had taken her children â€“ who are big fans â€“ to watch the show.
â€œThey had never been to a concert before and they were big fans,â€ Julia told Extra.
â€œShe (Swift) said, â€˜Would you mind coming on stage during the song and dancing?â€™â€
Julia â€“ mum to Hazel, Phinnaeus and Henry â€“ said she asked her kids if she should do it.
Imitating their reaction she said: â€œâ€‰â€˜Oh, Mom you have to do it!â€™
â€œMy youngest son said, â€˜Only do it if you want to, Mommy.â€™ It was so sweet!â€
Luckily she did decide to do it and it was an experience she wonâ€™t forget in a while.
â€œIt was one of those crazy, out-of-body moments. I canâ€™t tell you anything that happened from the moment I came on stage. I was so nervous,â€ she said.
Julia Roberts, nervous? Wow Taylor has quite some skills. She tweeted after the show: “Tonight Joan Baez and Julia Roberts danced it out to ‘Style’. These two women are my heroes. What an honor.” – Daily Mirror