Sure, Jeff's scarf, ski goggles, and earmuffs are absolutely adorable, and Venom's glacial transformation is cool as ice, but Groot turns into a dang Christmas tree complete with lights and ornaments.

[protected-iframe id=”ae63c29179fb67c0655849901a112f4c-60970621-60059703″ info=”https://c.brightcove.com/services/viewer/federated_f9?isVid=1&isUI=1″ width ...

James Gunn took to Twitter to answer this specific question and stated that this version of Groot is the YA (young adult) version of Groot, or as they like to refer to him, Swoll Groot.

Yesterday we had Christopher Lee deliver a heavy metal Christmas carol, and I’m going to continue the trend of fun pop culture Christmas songs with the Avengers.