According to Word of God Laney is the one who started the band and mainly because her crush on Corey. While we don't really get to hear alot of backstory this is really sweet considering 2 things: She is just as much as a music junkie as the rest of the band and happily enjoys being in a band with the boys as shown in the episodes. its clear its not just about her crush anymore but she legitimately loves her friends and playing music also The fact she would do this just for Corey.
Corey and Laney pretending to date in "All you need is Cake" is simply adorable.
For all the absurdity in the story behind it, Trina getting her sweater back is also genuinely sweet.
When the band sees El Chewpoocaca for the first time. Laney grabs on to Corey's arm for safety.
When the band is inside Trina's head, they meet her nice self Katrina who actually adores Corey and treats him like a brother for once.
Similarly, Corey feels guilty about putting Trina in her nightmare-induced coma to begin with, and is visibly even more so after meeting Katrina. It's the first real Aww, Look! They Really Do Love Each Other moment in the series.
Every single time Corey makes Trina incredibly happy. You can see the look of joy on her face as she happily goes diary.
It's even better when she goes into diary mode with a huge smile.
"Nick Mallory's throwing an animal freedom protests party, and there's room for one more." *gives Trina, who's dressed as a Unicorn, an apple* "Here you go, little fella."
The band successfully take out the meteor before it hit peaceville in "Here Us Rock" and survive. The band is grateful for there lives and Coreys Monolouge at the end is full of Corney Ship Teases.
Grojband were willing to save the world and die trying.
One of the orbs helps Grojband by bringing them their instuments after being sabatoged by Trina and also helps Mina finally stand up to Trina. Kind of subverted when he then reveals he did both just to get back at the lead orb and doesn't actually believe Grojband can stop the meteor even with their instruments, but hey, it was still helpful.
Despite the betrayal, Mina is still sticking with Trina in the end. She's just now FINALLY demanding to be treated as a proper friend and not as a "lackey".
The end of the episode in which all members of the band say "Thank for coming out everybody!" Even moreso if the series doesnt get another season and if this ends up the finale.
Laney almost confessing to Corey. Later she tells him that playing with him has been a great pleasure and Corey smiles and says "The pleasure was mine Lanes."
Corey finally being affectionate to Laney in the end. His speech is implying that he likes her and is telling her in his own Corey way.
Corey: Saving the world's one thing, Lanes. But there's other one things that are everything. A one thing so special you'd die to save it and be lost without it. And losing the one thing that's everything could leave you with nothing. A nothing so empty and cold you can't even feel the wicked heat that's right beside you.