You're Leo, and Raph, Mikey, and Donnie were being very rude and mean to you lately, they were recently turned from babies and back to teenagers because of Shredder's experimental potion that he was working on to stall us while he works on another plan to wreak havoc on New York. It was good to have your brothers back but they were more rude than usual and that confused you.

Luckily Splinter noticed this and how it has been occurring often. So, he decided to show your brothers a recording he took of you and them when they were babies for a few months.

"I want you boys to watch this video I took of Leonardo and you boys. Maybe this will change your perspective on Leonardo." Splinter said as he started to find the video on his phone.

"It's probably gonna be stupid.." Raph said under his breath, crossing his arms.

(you can choose what he recorded :3 I had this idea in my head while listening a You Are My Sunshine short of Jada Facer singing it :3 And I thought up a scenario with it and thought it would be sweet to have Leo sing the song to any of the brothers while they were babies ^v^)

(Have fun!)