The latest act to join Taylor Swift on stage at one of her concerts: the rock duo Tegan and Sara .
The duo has posted an Instagram photo of themselves performing their song "Closer" with Taylor at the Staples Center Tuesday night.
Tegan and Sara tweeted , "Feeling so freaking lucky to have shared the stage with @taylorswift13 to perform #closer We vote Taylor for president. What a #heartthrob."
On Monday night, Taylor invited Sara Bareilles to the Staples Center stage. She continues her four-show run at the L.A. venue on Friday.
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