Taylor Swift sings with Paula Fernandes in Brazil

Taylor Swift thrilled fans at a concert in Brazil by bringing South American superstar Paula Fernandes onstage for a surprise duet.

The country sweetheart invited the Brazilian singer to join her on the track Long Live at her show at the Citibank Hall in Rio de Janeiro on Thursday (13Sep12). Fernandes recorded a Portuguese version of the track earlier this year (12), but the Rio gig marked the first time the pair performed it together live.

Fernandes belted out the verses in Portuguese, while Swift joined her to sing the chorus in English and they later held hands as they took a bow for the crowd.

The Love Story hitmaker had an eventful trip to Brazil - she was also presented with a gold record plaque for sales of her concert album Speak Now World Tour Live at a press conference.