Tonight is the concept of Smoosh. Lincoln's favorite band.

The boy with the white hair is finally ready.

"I can't wait to go. As, at the first concept of the Smoosh group. "

"You know Lincoln, before I had you as a porter, I already witnessed concepts. Example: that of Mozart. But the one of the 21st century will be of interest. " The White Kwami says.

"Let's go before we run out of tickets." As is hiding in his loved one.

As the door opens, Lincoln's sisters (except Luna) are there.

"Do you have your first concept?" Lori asks.

"And who's that Ace? "Leni asks.

"As is the imaginary friend's name. Wait, are you listening to me at the door? "

"We had a good reason. Luna must not know because she risks spoiling it. "

"Like my first opera." Lisa said.

"To mine." Lori said.

"And our concept of Babs the Dinosaur. "Lola said.

"I don't want my concept to mess up."

"That's why we're going to help you. "

Lisa presses a button that causes a slide to appear through her window.

Lincoln slips, he joins Clyde at the mall to buy the tickets.

"Lincoln, I saved a seat for you."

"Thanks, Clyde. We will be able to experience the best concept. At least nothing is going to spoil that. "

"Bro, I saved you a good place in the line." Luna waves them over.

"Luna, how did you know the concept?"

"Dude, when it comes to a concept I'm always running. And I did well to come, because you are in a mood for this concept. "Luna told them.

"In the mood? "

Five minutes later. Lincoln and Clyde wear clothes like their idol Smoosh and the same makeup.

"Excellent. Now your rocker rock pose. "

Clyde gets into the fetus position on the floor.

"We have to work on this."

The queue for tickets advances. After five people, it's their body.

"Bro. I forgot an important thing. It can't be your memorial concept without a little romantic touch. "

"Owww !"

Lincoln is embarrassed as Luna kisses him in front of the crowd.

"Enough! Our sister warned about you messing up their concept and I won't let mine mess up."

"But ... But ... Lincoln, I just wanted to do your first memorial concept."

"I don't care. I still prefer it to be spoiled than to undergo another humiliation. "

Luna goes away in tears, she gives off a lot of negative emotions.

At Hawk Moth's lair.

"A sad young musician as she tries to help. In flight you little Akuma and go make this musician a real mermaid. "

The black butterfly flies to the mall, near the fountain and is absorbed by Luna's guitar.

{Guitar Siren, my name is Hawk Moth. You only wanted to help your brother but he refused your help. I give you the power of music. In return, you bring me the Miraculous from the heroes of Royal Wood.}

"Rocker Rock !"

Luna transforms into a NightClub-like villain but no longer a musician with a guitar shaped like a purple shell.

In the concept room. Lincoln and Clyde search for their row seats.

"Ranger G5 must be around here somewhere. Lincoln reads the number on the ticket.

"To find! Nikki, Marinette, Adrien. "They cross paths with three classmates.

"Are you here for Smoosh? "

"Yes, I am a huge fan."

"This is my first concept. I read on the internet that they are really good and I wanted to listen to their songs. "

"It's cool."

"It will start soon. "

The curtain rises, instead of Smoosh, Guitare Siren is on stage.

"Greetings, Royal Wood. Tonight I Guitar Siren will be your host. You are going to love my music like Smoosh. "

The Smoosh are under the hypnotic influence of the haunting music of Guitar Siren.

"Hawk Moth."

"And it's your turn! Siren song! "

Before she sings her song, Lincoln, Adrien and Marinette leave the room.

The bearer of the Miraculous serpent, sees the three bearers of Miraculous slip away to transform.

"Lee, should we help them? "The snake Kwami asks its wearer.

"No, Sass. We are observers and we act in case. " Lee replied.

"..."

Lee puts on headphones quietly. The spectators are mesmerized by the music and dance to the rhythm.

Guitar Mermaid plays different music on her guitar on stage.

"You see Lincoln. Your big sister promised you to make this memorial concept. Lincoln? Lincoln? "

Lincoln is no longer on the ranger.

"Dude, where did Lincoln go?"

Ladybug, Chat Noir and Ace de Roi appear on stage to fight the evil guitarist.

{Guitar Siren, hypnotize them to get them to hand you their Miraculous!} Moth speaks telepathically.

"Siren song!" She plays her hypnotic song about the three heroes.

The song has no effect on them.

"What? Why didn't my song work on them? "

"As in the mythology of Ulysses. Ear cottons. Ladybug said, raising her voice.

"Yeah, lucky Flip was selling ear cottons. "

"In that case, I just need to take them out of your ears."

She attacks with her guitar, approaches and tries to remove their earplugs.

The evil guitarist girl attacks Chat Noir and manages to remove the plug from Chat Noir's left ear.

"Siren song!" The black cat hero is now mesmerized by the song. "You are going to help me take the magic jewelry from your friends."

"Rocker Rock!"

Chat Noir is in the grip of the enemy and attacks his allies. Ladybug and Ace de Roi fight against Chat Noire.

"Vocal Sonique!"

She utters a sonic howl at the two heroes who are blowing towards the wall and their earplugs fall off.

"You are going to join Chat Noire! "

"No way! Full Deck! " Night Club appeared.

Night Club plays a solo that pushes back the music of Mermaid Guitar.

"Impostor! Sonic Burst "

"Night Solo!"

The two musical waves collide and create an explosion on stage.

"Lucky Charme!" Its power causes a disco ball to appear. "How can I use this?"

The ladybug girl looks around to find the use of her lucky charm.

"Sure."

Guitar Siren prepares to play her hypnotic song about the two heroes. Ladybug uses the spotlight to blind the villain.

"Hey! I see nothing. "Guitare Sirène is unable to play.

Ace de Roi grabs his guitar and breaks it.

Ladybug captures the Akuma, purifies it, and repairs the damage.

The spectators and Chat Noir are no longer under the influence of the hypnotic song.

Luna becomes as before.

"Why am I on stage?"

In the end, Lincoln and his friends profit from the concept of Smoosh.

"Luna, where are you going? "

"At home. I'm sorry I nearly ruined your first concept. "

"You only made it more memorable. "

"More memorial? "

"Yes, and I want this to be a memory to share with my big sister. "

"Thank you, Brother. "

Luna stays, creates a new memory with her little brother.