Musa is one of the main characters of the Winx Club series. She is the Guardian Fairy of Music and one of the founding members of the Winx Club. She is also the former love interest of Riven.
In the fifth season, Musa and Riven's relationship is much better as they are shown to be more closer and happy together, showing their relationship truly has been restored after everything that happened between them in the previous season. However, Musa soon notices Riven has began acting strangely as whenever they are spending time together, Riven forces an excuse and leaves Musa, angering and upsetting her. Musa also notices Riven admiring a new fairy at Alfea and becomes jealous. Later, Musa again witnesses Riven and the same fairy leaving together after Riven made an excuse to leave, causing her to believe Riven might be cheating on her. Towards the end of the season at Stella's Fashion Show, Riven reveals he has been secretly getting guitar lessons from the fairy as he was preparing a special love song he wrote for Musa. Together Musa and Riven perform the song and their relationship is once again restored.
However, in the beginning of the sixth season, Musa and Riven are revealed to having problems in their relationship once again. Throughout the season, Riven has been constantly ignoring Musa and instead is focusing on training himself with his new weapon as he wants to become the leader of the Specialists. Musa puts up with Riven's behaviour throughout the season and even tries to gain advise from Flora about the situation with him. Eventually, towards the end of the season, Musa finally has enough of Riven's behaviour and confronts him, pointing out all he cares about it is his training. However, Riven continues to ignore Musa and goes back to training, informing her they'll speak later, once again upsetting Musa and causing her to leave. Later, Riven slowly begins to realize his error for how he has been treating Musa when he fails to protect her from Rumplestilskin stealing her voice.
Later, when Riven challenges Sky to become the leader of the Specialists and fails, it makes Riven acknowledge that he still lacks skills and comes to realize and accept he let his ambitions blind him. During Musa and the Winx performance of the new Alfea Anthem, Riven comes to finally and fully realize how awful he's been to Musa upon seeing Musa performing, realizing he hasn't been there for her. When Musa succeeds in saving Alfea from an attack against the Witches of Cloud Tower, Riven congratulates Musa, but she ignores and tries to leave. However, Riven continues to congratulate Musa and finally apologises for his behaviour by acknowledging that she deserves better after she managed to protect Alfea.
Riven and Musa continue talking as Riven admits he hasn't been a good boyfriend or Specialist as he has lost his view and way of being a hero. Musa regains her voice and forgives Riven, but now realizing they aren't meant for each other, Musa and Riven break up for good and remain friends. Soon afterwards when the Winx and Specialists appear, Riven announces his decision to leave to work through his issues and find his way to become a true hero. Riven says goodbye to Musa and leaves Alfea, marking the end to their relationship and officially leaving the Specialists.
In the fourth season, Musa meets Jason Queen, a record producer on Earth. Upon witnessing Musa performing at the Frutti Music Bar, Jason becomes impressed and decides to make Musa into a star due to her amazing singing voice. However, upon witnessing Musa and Jason together, causes Riven to become jealous and unsupportive of Musa, causing serious problems in their relationship. Musa becomes deeply upset, but Jason comforts Musa, assuring her everything is going to be alright, showing his kindness and his support. Eventually, soon after Musa and Riven break up, Musa begins to develop romantic feelings for Jason, seeing that he truly supports her and believes he might feel the same way. However, Musa sadly discovers that Jason is engaged later in the season upon receiving an invitation to sing at his wedding, leaving Musa heartbroken once again.
Orlando is a musician who is part of a traveling performing arts group that Musa met while she and the Winx travelled to the past in the seventh season.
Jared is a student at Red Fountain who harboured romantic feelings for Musa during the second season of the series.
- Out of all the Winx Club Couples, Musa and Riven had the most issues and problems in their relationship.
- Musa originally had short hair, but changed her hairstyle in the beginning of the third season.