This is an archived article that was published on sltrib.com in 2013, and information in the article may be outdated. It is provided only for personal research purposes and may not be reprinted.

Last night, Taylor Swift invited Tegan and Sara to her show at Staples Center in L.A. to join her on stage and perform their hit single, "Closer," together in front of a sold-out crowd.

Another big moment for the Canadian sisters, who will open for fun. at Saltair on Aug. 23.