No instruments, no problem. The concert put on by Tulane’s three a capella groups managed to blow away the audience, relying only on their powerful voices.

At 9 p.m. Nov. 6, students and parents alike filed into McAlister auditorium to listen to three Tulane a cappella groups each sing three of their best-rehearsed pieces.

Nearly the entire room was filled, mostly with students, to see some of Tulane’s most talented sing. Green Envy started the concert strongly by singing the Tulane University Alma Mater and then breaking down into a remix, complete with beat boxing and some fun dancing. This performance may have brought back some feelings of nostalgia for freshman convocation, when Green Envy did a similar performance for the entire freshman class in the same auditorium.

Then, THEM did a stunning rendition of “Earned It” by The Weeknd with soloist Brennan Ryan. Ryan hit every note and added some unique twists on the original song. Some may say THEM gave The Weeknd a run for its money with this performance. They also performed “Mykonos” by Fleet Foxes with soloist Hannah DeWit and “Case of You” by James Blake with soloist Koby Berman.

TULA sang three songs by female performers, which was appropriate for this all-girls group. They started out energetically with a lighthearted tune, “Title” by Meghan Trainor and then went for a more solemn tune: “Back to Black” by Amy Winehouse. Their last song, “Ghost” by Ella Henderson was a catchy, strong final performance for TULA with soloist Laura Stanfel that the entire audience got into.

The performance then went back to Green Envy who started with “Miracle” by Kimbra and followed with “Honeymoon Avenue” by Ariana Grande with soloist Ani Carlson. It was definitely a challenging song to sing, going between Grande’s really high and low notes, but Carlson was on pitch. “Honeymoon Avenue” was one of Ariana Grande’s first songs, and Green Envy’s performance left the audience wishing that Grande would make more songs like this.

For the finale, THEM, TULA and Green Envy came on stage to sing “Sweet Home Alabama” by Lynyrd Skynyrd, which reminded the audience of Tulane’s southern roots and that even though all of these a cappella groups strive to be the best and enjoy some friendly competition, they are able to come together and put on a great performance for their peers and parents.