You were in the back room in the music building tuning your guitar when you heard someone sitting down in the main room and you soon heard singing, your favorite song 'There's nothing holdin me back' and when you walked out you saw Alex your crush singing

Maybe I should stop.. and start confessin... Confessin Yeah!~

You quietly stepped out a plugged your guitar in and started playing while he sang

Oh I've been shakin I love it when you go crazy! You take on my ambitions!