Allen McKenzie (born January 1, 1960) is an American musician, best known as the bass guitarist for the hard rock/glam metal band FireHouse.

Willoughby agreed, building the iconic "Guinness Harp" 5 string bass that made its first appearance onstage with McKenzie in 2014.

On leaving the army, McKenzie became involved in the music scene in Akron and played with cover bands.

In summer, 1994, Quest gave an opening performance for a Yes concert at the Blossom Music Center in Cuyahoga Falls, Ohio.

Nice to meet you earned Peacetree a nomination for "Best hard rock band" at the 2000 Cleveland Free Times Music Awards.

Peacetree gave opening performances for bands who were touring nationally such as Mötley Crüe, Styx, Cinderella and Neil Young.

FireHouse toured the USA, Canada, Mexico, Puerto Rico, Japan, India, Brazil, Spain, Italy, Greece and the UK.