Open Music is a fortnightly music show held at Jam & Roller. Solo artists or groups sign up for a slot to participate most of the time. Occasionally, there is a theme. The theme usually mixes up who sings with who, often leaving the gang scrambling to find partners, if not left up to chance.
This was the first Open Music of the year, and Jim and Yam wanted to be the first to perform. When sign-ups opened up, Jim and Yam were scooped by Ramiro, who was able to sign-up faster. Nico and Pedro signed up ahead of time in hopes of finding a singer for their band, but by the time performance night came, they were still left without a singer. Luna introduced them to her friend Simón, who agreed to sing for their band, and gave them a song he wrote to perform. During the performance, Simón invited Luna up to the stage, and she finished out the song with the band.
Matteo's Italian cousin Flor came to town and lent female vocals to Simón, Nico, and Pedro's band, which was named The Roller Band between the Opens. Ana and Ricardo were worried about Nina, and they wanted to show Nina that they were on good terms, so they decided to sing a song together at the Open to prove this to her. Ámbar and Matteo prepared to sing a song together, but Ámbar was late to the performance, so Matteo asked Luna to take her place.
Instead of having individual performances, this Open Music featured only two teams, the girls and the boys, competing head to head. To determine the first song of the competition, a random word was displayed on a screen, and a song beginning with that word had to be sung. The first word was "puedo," and the girls began the competition with the line "Yo puedo subir." If a team wanted to interrupt the other team's song, they had to start their song with the same word that the other team's song had landed on. After the boys began a tension filled song, Luna interrupted them to diffuse the tension and got both the boys and the girls to join forces to sing a song together. Since both Jazmín and Delfina were performing, they asked Sebastián Villalobos to film the show for Fab and Chic.
This Open Music occurred the same week Tamara, Luna, Simón, Ámbar, Matteo, and Nina were away at the International Skating Competition, leaving the show without a host. To fill the open position, Tamara invited Darío Barassi to host the show in her place. In addition to the special host, this Open also had a another special guest, the well-known band Electro Power, and a special theme, only bands were allowed to compete. Disappointed that they weren't at the skating final or in a band, the left-behind Jam & Roller gang decided to make up a band of their own, Los Otros (The Others). Since Simón was unable to attend the Open with The Roller Band in person, he sang over video call, and convinced Luna to sing with him.
Believing that the kids always pair up with the same people, Tamara decided to make everyone draw names out of a bag to determine Open Music performances. Luna was paired with Simón and Matteo, which didn't go well. Since this was supposed to be Simón's final Open Music, Matteo feigned sickness last minute to let Simón perform his final Open Music with his best friend. Ámbar, Delfina, and Jazmín tampered with the bag to make sure they ended up each other's partners. They also stole Jim and Yam's choreography, and asked Jim and Yam if they could go before them to leave Jim and Yam without choreography.
Like Flor and Luna, Daniela joined up with The Roller Band to lend female vocals to one of their songs. The rest of the performers sang solo, and dedicated their performance to their special someones. Gastón for FelicityForNow, Yam for Jim, and Cato for Amanda.
This was the last Open Music of the season, and it featured all new songs. This Open was highly anticipated because FelicityForNow announced that she was going to perform in it. During the performance, Felicity removed her wig and revealed to the public that she was really Nina. This was also the first Open Music where The Roller Band performed without an additional singer accompanying them.