Photo: WENN.com
Since her residency at o2 Arena began as part of her RED tour, Taylor Swift has had a different guest each night. We've already seen her invite Tegan & Sara and Ed Sheeran to the stage, and now BBC Sound of 2014 winner Sam Smith has performed a duet with the singer.
The two performed Smith's latest single 'Money On My Mind', which Swift described on Facebook as her "new favorite song."
Following on from the release of Smith's debut single 'Lay Me Down', 'Money On My Mind' is the second track taken from his upcoming debut album In The Lonely Hour.
Watch Swift and Smith perform 'Money On My Mind' below
Swift will be performing again at the o2 Arena tonight (4 February), and will then return for two more dates on 10 and 11 February. For more information visit Gigwise Gig Tickets.
_11_600.jpg)
