Taylor Swift has hailed Sabrina Carpenter "as real as they come" after she used her one day off from touring for their surprise duet.
The 34-year-old pop megastar brought out the 'Bed Chem' singer, 25, at her New Orleans stop of the 'Eras Tour' at the weekend, with the pair performing acoustic renditions of Sabrina's hits 'Espresso' and 'Please Please Please' and Taylor's 'Is It Over Now?'.