Aelita is nervous at her concert, as she's the opening act. She tries to take her mind off of things by helping Jeremie, but they fight about Jeremie being late to the concert. XANA attacks Aelita backstage, and brings her to Lyoko.
This episode contains examples of:
- All Part of the Show: The lightning Milly shoots out of her hands causes electricity to appear on-stage, which the Subdigitals merrily ignore and continue playing anyway.
- Big "WHAT?!": Ulrich's reaction to finding out Odd basically sold him out to Sissi to land an extra concert ticket for his date.
- Blatant Lies: When Odd suggests Ulrich and Yumi should date before leaving, the following conversation happens...(Ulrich and Yumi looking away from each other with blushes)Urich: "You and I are just good friends. Isn't that right?"Yumi: "...Right."
- Call-Back: The season's subplot of Aelita being the opening act for the concert of the Subdigitals concludes this episode, as the concert finally takes place.
- Child Popstar: Aelita is the opening act for the Subdigitals concert.
- Demonic Possession: Milly and Tamiya, as well as the stage producer. XANA!Producer kidnaps Aelita, while Milly and Tamiya hold off the Lyoko Warriors.
- Opportunistic Bastard: XANA, as per usual. One of the rare episodes for one of his attacks to not take place at the school, rather at a concert hall.
- Pintsized Powerhouse: XANA takes control of Milly and Tamiya, who give Ulrich no amount of grief. He knocks one of them out, but remains stuck backstage at the concert.
- Stage Fright: Aelita, who notes that she feels really nervous about the concert.
- The Masquerade Will Kill Your Dating Life: Jeremie wants to do calculations to make the Skid more reliable, but Aelita wants to the rest of the gang at the concert. Naturally, Aelita isn't happy about Jeremie promising to go, but being late to do so, and storms off. After the Time reversion, Jeremie does go to the concert, gives her some reassuring advice to calm her nerves (which is part of the reason she lashed out at Jeremie so hard).
- Mirrors Reflect Everything: Ulrich uses a mirror to protect himself from the attack of a Xanafied Tamiya, and the electric beam reflects right back at her, knocking her out.
- Near Victory Fanfare: As soon as William is defeated, the music from the concert is layered over the regulars ethereal music on Lyoko.
- Shock and Awe: Milly, Tamiya, as well as the Stage Producer, they all have these powers to delay the Lyoko Warriors.
- Shipper on Deck: Odd, upon Yumi helping him out with his date/ticket dilemma, happily remarks to Ulrich how he should really start dating Yumi.
- Taking You with Me: While being devirtualized by him, Yumi manages to take out William with her fans as they swing back around on him. He stands there confused and realizes a second too late what she managed to do.
- Would Hurt a Child: XANA, and to some extent Ulrich, though XANA possesses Milly and Tamiya, and Ulrich has no choice but to fight them.
