After a brief trip to Berlin for a concert, Taylor Swift 's now back in London to finish up her RED tour; the final show is Tuesday night. On Monday night, Taylor continued the tradition of having a special guest join her onstage. This time, it was "Next to Me" singer Emeli Sandé .
It's anybody's guess who'll join Taylor for the last show of the tour. During the world trek, she's welcomed surprise artists ranging from Sara Bareilles , to Carly Simon , to Jennifer Lopez , to Train 's Pat Monahan , to The Script 's Danny O'Donoghue , and many others.
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