Henry Lee Barker, known professionally as Simpler Complex (and other artist names like CATZ 2, Mixay Mix, Colorful, Applications, Odacity, and more), is a musician from Fairbanks, AK. He is not very well-known, but those who do know of him (including John Gourley from Portugal. The Man) praise his ability to invoke emotion, his composition expertise, his genre-blending sound(s), and his multi-instrumentalism.

Along with a prolific solo career of 14 albums as of November 2024, SImpler Complex is also one of the founding members of Alaskan rock band Invisible Reflection.