They first used the name Klits, but were renamed Groep 1850 in 1966 when their debut single, "Misty Night" / "Look Around", appeared on the tiny Yep label. Though few copies were pressed, it established them as one of The Netherlands most original bands (alongside the Outsiders and Q65) and they soon signed to Philips. More singles ensued, in a highly psychedelic vein, including the "Mother No Head", their only single to chart on the Dutch Top 40.
They first used the name Klits, but were later reidentified as Groep 1850 in 1966 when their debut single, "Misty Night" / "Look Around", appeared on a small Yep label. Although few copies were produced, it helped establish them as one of The Netherlands' most distinctive bands (alongside the Outsiders and Q65) and they soon signed to Philips. Additional singles followed, in a highly psychedelic style, including the "Mother No Head", which was their only single to reach the Dutch Top 40.