Marius Ygre Njølstad (born February 6, 1989), professionally known as Madden, is a Norwegian singer, songwriter and producer.

[1] Marius had an early interest in music, and started playing the piano at age 7.

Through his studies he met Daniel Wold, and they created the duo Kontraktor together, following a writing session back in 2010.

[2] In their debut year, they won the John Lennon Songwriting Contest with their track "Bocce Ball" in the category Electronic.

The song features vocals from artist 6 am, and it spent a total of 19 weeks on the official Norwegian charts VG-lista top 40, where it peaked at No.