His parents were big fans of Elvis Presley, Jerry Lee Lewis, Johnny Cash, and Chuck Berry.

As a teenager, he listened to bands like Metallica, Iron Maiden, Judas Priest, Slayer, Whitesnake, Deep Purple, Iced Earth and Black Sabbath.

[5] Volbeat's sophomore record Rock the Rebel / Metal the Devil and their third effort Guitar Gangsters & Cadillac Blood went straight to number 1 in the Danish charts.

[4][6] Poulsen later showed his affinity towards Social Distortion and taking cues from a "new influence" created Volbeat's distinct sound.

Poulsen's father, who was a big fan of Volbeat, died on 27 June 2008,[7][circular reference] shortly before the release of Guitar Gangsters & Cadillac Blood.

[citation needed] In 2014, Poulsen did a verse in "Highwayman", a Jimmy Webb song covered by Iced Earth on the album Plagues of Babylon.

In 2023, Poulsen formed the death metal band Asinhell, along with Marc Grewe of Morgoth and Morten Hansen of Raunchy.

The effects Poulsen uses are an Ibanez Tube Screamer, a noise suppressor, a vintage equalizer and a maximizer pedal.