This is how at Marrinette's college and fight in the concert goes in Guitar Villain (CTaRAoMToLaCN).
[The gang arrives at Marrinette's college]
Rianna F-Fiona: This is where Marrinette and Adrian go.
Emmet: Where is Ryan and the others?
Ryan F-Freeman: We're here.
Rikki: Ryan? You got something I can eat?
Ryan F-Freeman: Sure. [hands him a tomato] Here.
Matau T. Monkey: A tomato? Is that he needs to... to...
Ryan F-Freeman: Recharge? Yeah.
[Sci-Ryan and Chloe appear overhead]
Sci-Ryan: Look out below!
Evil Ryan: Sci-Ryan?
Bertram T. Monkey: Chloe?
Iago: Wait. How did a Shadowbolt be able to fly?
[Sci-Ryan lands on the ground with Chloe]
Sci-Ryan: Hey, guys.
Odette: What are you doing?
Sci-Ryan: We just thought Rockset might show up at any moment.
Evil Ryan: Cool. Now that Sunset is akumatized, Bertram can't be her bodyguard.
Bertram T. Monkey: Hey! I was hurt about that.
Iago: Don't worry, you two. Megatron can be Starlight's bodygaurd.
Sci-Rianna: For now.
Spikewave: Go, Rockset! Go, Rockset! Go, Rockset, Remember!
Codylight Sparkle: WILL YOU KEEP IT DOWN?!
Sidecord: Yeah, you're hurting my audio-receptors.
Sci-Ryan: I have no idea why Rockset is famous. Chloe and I saw a video of Rockset singing that same song Ember sing at Amity Park.
Chloe: That's what makes her so awesome.
Bertram T. Monkey: You said it, Miss Chole.
[They suddenly hear music]
Thomas: Where is that music coming from?
Sci-Ryan: It's coming from outside.
[A stage truck pulls up in front of the school and Rockset appears on it]
Rockset Shimmer: Yeah! Oh!~
[Dr. Neo Cortex and Dr. N. Brio appears playing
Dr. Neo Cortex: It was, it was September~
Dr. N. Brio: The wind blows, the dead leaves fall~ [laughs]
Rockset Shimmer: To you, I did surrender~
[Matau pulls Marrinette to a room]
Matau T. Monkey: I think we need to crash that concert, Marrinette.
Tikki: The talking monkey's right. I hope Ryan could do the same.
Marrinette: You're right, Tikki. I'll let Matau say my saying. [to Matau] What time is it?
Matau T. Monkey: Transforming time.
Marrinette: Tikki, Spots on!
[Marrinette transforms to Ladybug. Meanwhile, at the concert]
Dr. Neo Cortex: Oh, Rockset!~
So warm and tender~
Rockset, Brio and Cortex: You will remember (her) my name~
Rockset Shimmer: Hello, Collège Françoise Dupont! Tell us who you love!
Crowd: Rockset Shimmer!
Evil Ryan: Yoo hoo! Hey, everyone! Look! It's Rockset McLamer!
Rockset Shimmer: Oh great. A critic. Maybe the former follower of Unicron likes our new song better.