In 1967 MMM released their debut LP that still today is considered to be the first experimental POP album. MMM joined Jimi Hendrix' at his first Sweden tour as the opening act. In 1968 Mecki Bodemark joined the super psychedelic trio Baby Grandmothers and the classic MMM Line up was born. By request MMM joined Jimi Hendrix also on his 1968 Swedish tour. In 1969 MMM released their LP "Running In The Summer Night" which is considered to be the first Swedish heavy rock album. The LP Marathon was recorded in the legendary Chess studio in Chicago 1970. MMM was the first Swedish band to tour the USA. In the States they played with Sly & the Family Stone Grand Funk Railroad The Byrds Pentangle and Jethro Tull. In 1971 MMM performed and recorded the music to Lars Johan Werles' ballet The Stonehorse. This is the entire recording from 20th of february 1971.