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Andy Rehfeldt Engineers Metal Songs to Softer Genres

If you haven’t heard of Andy Rehfeldt you’ll soon wish you had. This chap spends his spare time making light tracks heavy and vice versa for his audience’s amusement.

By taking classic songs from any genre, Andy adds his own personal flare to take them to another dimension. You might say he is single handily creating a musical revolution of sorts.

In the following article, we’ll take a quick look at the genius behind these masterpieces of mash-up, and bring some of his best work to your attention. 



Who is Andy Rehfeldt?

Andy Rehfeldt is something of a YouTube celebrity. But, unlike the ‘run of the mill’ YouTube-celebs you might be familiar with, Andy is something very unique indeed.

His USP is his amazing talent for making heavy songs light and light songs heavy. While this sounds like something of a novelty, Andy is actually a very talented musician in his own right. 

Andy is a Los Angeles-based musician and composer who regularly plays gigs and writes music for film and television in his ‘day job’. But his real passion is his pet project on Youtube.

And it really shows, his material is, frankly, absolutely fantastic. 

Throughout his long YouTube presence, Andy has taken on musical giants the likes of Ozzy, Slipknot and the Sound of Music! He has, of course, also taken on other classic metal material from Metallica to ACDC.

His light versions of Metallica’s “Master of Puppets” is pure genius and as Metal Injection rightfully notes: –

“‘Master of Puppets’ is arguably Metallica’s magnum opus, everything that is great about Metallica can be found in this song and it’s not an easy one to perform. Mashup master Andy Rehfeldt had the killer idea of doing one of his ‘smooth jazz’ versions of this thrash classic and the resulting tune really shows you how well the song was written.”

Source: Andy Rehfeldt/YouTube

According to his YouTube bio, Andy once dreamed of becoming a ‘real’ rockstar once upon a time. But life had other plans for him.


“Instead of becoming a rockstar, I played in bars for many years. Thankfully, I landed a job as a composer for Endless Noise Music and Sound Design. This channel partially fulfills my dream of entertaining a large audience.” – Andy Rehfeldt.

So, if this has whetted your appetite a little, we’ve decided to highlight 7 of some of his best covers on the web. The following list is far from exhaustive and in no particular order.

Trust us when we say his channel is full of pure mash-up gold.

How does Andy Rehfeldt create his masterpieces?

Andy, being a trained and experienced sound producer and composer, uses all the tricks of the trade to create his wonderful mashups. He does most, if not all, of the work himself with the exception of writing the lyrics, and whatever he keeps from the original track.


In a rare “behind the scenes” video on his channel, Andy gives his fans a brief insight into the creation process. This one was for his latest track, at the time, a remake of Shirley Temple’s classic “On The Good Ship Lollipop”. 

According to an interview with Metal Insider, each song takes about 6 to 8 hours to complete from start to finish. His inspiration for the whole process was Lamb of God’s “Wrath”.

He noted that the tracks were separated and he thought “I can do my own music to the vocals. of course, I wanted to do something funny.”

Thankfully for us all today, Andy did and the results are truly awe-inspiring. We’ve collated some of our favorites below, but we thoroughly recommend you browse through his back catalog for yourself. 

1. Andy Rehfeldt’s Slipknot covers are brilliant

Sadly this one was banned by YouTube, but you can see the full version on streamable. In this classic Rehfeldt-revision Slipknot’s “People = Sh*t” is reimagined as a Disney soundtrack entry. 

For any fan of metal or Slipknot in general, we are confident you’ll love Andy’s toned down and pacified version of this classic metal track. It really is something that has to be seen to be believed. 

You will not be disappointed!

2. Andy Rehfeldt  also tackled Rage Against The Machine’s “Killing In The Name”

Rage Against The Machine’s “Killing In The Name” is something of a metal classic. But when Andy gets his eager fingers on it, it just becomes more than anyone could ever have imagined.

His lighter version truly does the original justice, whilst injection it with some je ne sais quoi! A magnificent effort Andy, our compliments. 

Titled “Killing In The Name (Less Angry Version)”, this is a version even your grandparents would come to love. You might even find yourself playing it at polite social gatherings.

Source: Interesting Engineering