Tegan and Sara please audience

During their performance of “Monday, Monday, Monday,” which they admitted to not performing live in “years,” Tegan and Sara paused just once, blanking briefly on the lyrics.

“This will be our first mistake,” Sara quipped to the audience.

Really, it was their only mistake throughout that Saturday performance at the Orpheum. Tegan and Sara Quin, the Canadian twins behind the lesbian cult band, managed to be both endearing and fierce in the second concert in the American leg of their tour.

Tegan and Sara songs range on the shorter side, and because of that, they were able to fit in a lot in a small amount of time. In just two hours, they played everything from their new hits, such as “The Ocean” and “The Cure,” to old crowd favorites such as “Speak Slow” and “Where Does the Good Go.” For their encore, which they kept mostly acoustic, they went as far back as “My Number” from their 2000 album, “The Business of Art.”

Tegan and Sara got everybody on their feet from the start, and kept them there for the duration of the concert. Between songs, they entertained the audience with stories of their childhood and random tidbits about their lives. Sara admitted her secret dream of becoming an R&’B singer and dressing up like Ashanti and Rhianna.

“I always thought my androgyny was cute, but no, people want me to sex it up,” she said.

“You picked out your own clothes,” Tegan retorted.

The opening bands also added a lot to the overall atmosphere of the night. Steel Train, the type of dreamy artsy man band that young girls can have crushes on, proved there was more to them than their looks.Holly Miranda, a shy mixture of Cat Power and Feist, entranced the audience with her smooth vocals and surreal guitar melodies.

As great as the opening bands were, however, they can’t compare to Tegan and Sara, who have an almost scary knack for engaging the audience. By the end of the night, Tegan and Sara had every audience member singing along and hanging on their every word &- mistakes and all.