Why are there power chords and shouting on Beyonce's record?

Beyonce performs onstage at the MTV Video Music Awards (VMA), at The Forum in Inglewood, California, on Aug 24, 2014.
Beyonce performs onstage at the MTV Video Music Awards (VMA), at The Forum in Inglewood, California, on Aug 24, 2014. PHOTO: AFP

NEW YORK - Beyonce has become increasingly experimental but this sounded a bit much.

Some fans who bought a vinyl of her latest album Lemonade wound up with music from a Canadian punk band.

ZEX - an Ottawa hardcore quartet whose songs include Child Soldier and Burn The Flag - posted on Facebook a yellow record labelled as Beyonce's Lemonade playing on a turntable.

But the sound was guitar power chords and shouted vocals.

Columbia Records in a statement acknowledged a manufacturing mistake, blaming unspecified "human error" at a plant in Germany.

Rejecting any notion that it was an artistic decision, the label said: "Beyonce and ZEX were not aware of or responsible for the mispress."

The mistake was only on the A-side of Lemonade on a small number of records, said the label which promised refunds and exchanges.

ZEX - who have 8,000 likes on Facebook, compared with Beyonce's 64 million - on Monday were directing the curious to a new website to buy the music.

Lemonade, which came out last year, was considered the most musically adventurous album of the pop superstar's career. She branched into hip-hop, country - and hard rock, with Jack White and Led Zeppelin members among the credited songwriters.