A derivative of Bubblegum Pop, which known for being airy and sweet, and is very appealing to children.
Bubblegum metal however, emplacements the elements of Bubblegum Pop while being lead but Metal music. This can also be considered Sludge.
Most notable artist that is in the subgenre, is BabyMetal.
The best american example would be a song call "X" by Poppy.
Jay: This is great, it's heavy but cute, what is this?
Karl: it's Bubblegum Metal! Isn't it adorable!