Brandon Mendenhall is an American rhythm guitarist who was born with cerebral palsy. However, inspired by acts such as Korn and Pantera, Brandon taught himself how to play guitar at the age of 19, rehabilitating his left hand without surgical intervention.

He had a dream that was thought to be impossible: Brandon wanted to play guitar and form a band. The Mendenhall Experiment was born as Brandon's own personal aspiration to be in a world-famous band while working within the limitations of Cerebral Palsy, knowing full well that the cards were stacked against finding musicians willing to work with him.

Formed in 2008, The Mendenhall Experiment also features bass player Nathan Stockton, who overcame a disability of his own-childhood deafness-through the power of music. He and Brandon are joined by Alyce Hayes on vocals, Mike Lira on guitar, and Justin Lubeck on drums.

Based in Southern California, TMX has been regularly performing on the infamous Sunset Strip in addition to gigs throughout the region opening for the likes of such metal mainstays as John 5, POD, Alien Ant Farm, Kill Devil Hill, Fear Factory, Prong, Flaw, Metal Allegiance, Smile Empty Soul, Cold, and more.

In 2013, the five-piece performed at the Monster Energy Aftershock Festival in Sacramento, California, sharing the stage with Korn, Megadeth, and Five Finger Death Punch.

A breakthrough occurred on June 17, 2014, when TMX made it to the final round of The Battle of the Bands for Warped Tour. After an electrifying performance that left the audience screaming for more, The Mendenhall Experiment took second place and the subsequent buzz reached the discerning ears at Liquid Bit Music Productions and in August 2014 TMX inked a publishing deal with the company, six years to the day after the initial incarnation of The Mendenhall Experiment performed its first show in Brandon's hometown of Kankakee, Illinois. Shortly thereafter, the quintet put pen to paper again to sign their first development deal with Lucent Records, including national digital distribution through Universal Music Group.

The Mendenhall Experiment began recording their current EP in various studios in Los Angeles with the help of some very special guests: James “Munky” Shaffer (Korn) and Danny Lohner (NIN/A Perfect Circle). The EP is available everywhere online and the debut single, “Seize the Day”, has received over thirty-thousand views on Vevo/YouTube.

The music video was acclaimed Video of the Year at the 2015 LRT Music Video Awards in Hollywood,California, celebrating independent music, while Brandon was deemed Trailblazer of the Year at the 2015 United Cerebral Palsy Los Angeles Art of Care annual event.

A feature documentary film detailing Brandon and the band’s story, Mind Over Matter, was released in 2019; directed by French filmmaker Sébastien Paquet (Korn,Wounded Warriors). So far the band has completed six tours which are comprised of three headlining tours and three national tours.