September 19, 2014 | 8:15am ET
Tegan and Sara took time out of their American tour with Katy Perry and made a visit to Conan‘s Burbank, California studio last night. The Canadian twins brought along a choir of teens from Los Angeles’ Grand Arts High School to provide backup on “I Was A Fool”. Replay the sultry performance below.
Tegan and Sara just recently wrapped up their own tour behind Heartthrob, and have thus far played six shows with Perry. Next up is a Friday night gig at LA’s Staples Center. Find the complete itinerary here.