Per Michael "Joe" Ljunggren (22 March 1962 – 17 July 1995)[1] was a Swedish outlaw biker and gangster who served as the first national president of the Bandidos Motorcycle Club in Sweden.

In 1984, Ljunggren founded the White Trash MC with Jensen and another Danish biker who had moved to Helsingborg, with the intention of eventually forming a Hells Angels chapter in Sweden.

Two Black Sheep members, including Jan "Clark" Jensen, took refuge with the White Trash in Helsingborg following the Copenhagen Biker War.

The same year, police raided the White Trash's clubhouse while searching for Jan "Clark" Jensen and discovered weapons and stolen goods, which resulted in Ljunggren being sentenced to prison.

He withdrew from the biker club scene following the birth of his second son in 1989 and, in 1991, spent time riding through the United States with his friend Lasse "Kalle Fist" Karlsson, another former Rebels member.

Some time later, the Hells Angels in Malmö offered a path to membership for the Rebels and Morbids on the condition was that the clubs were merged and that Michael Ljunggren and his friend Lasse Karlsson were not members.

[2] The Morbids – a club with only six members – rejected the invitation and, requiring support in its feud with the Hells Angels, instead began an affiliation with the Undertakers MC in Zealand, who had contacts with the first Bandidos chapter in Europe, located in Marseille.