Groot has never seen such wild, free expression, not even from Quill who knows every word to every song on his Zune - or he did before Rocket got ahold of it, anyway. His fascination is plain to see as he watches her raptly, especially her hair as it flips back and forth.

Now him? So soon? What if he does it wrong? Groot hesitates a moment, uncertain, but it takes little more than an encouraging, indulgent look from Rocket for him to throw himself into the music as she had. He doesn’t know the words, of course, but it doesn’t matter. “I am Groot, I am Groot,” he belts out, a few new leaves on his head swishing as he attempts to copy her head banging. It’s a good thing he can’t get whiplash, with how he is flailing around.