Earthshaker is a seminal figure in the Japanese hard rock and heavy metal scene, with a rich history spanning several decades. Formed in Osaka in 1978, the band shot to fame in the early 1980s as part of the country's burgeoning metal movement. With Yumi "Yama" Masatake on the mic, Shinichiro Ishihara on guitar, Takayuki Kai on bass, and George Murasaki on keyboards, Earthshaker quickly established itself with a sound that fused traditional metal with the melodic sensibilities particular to the Japanese rock scene of the era.

The band's name, Earthshaker, is a testament to their dynamic and powerful style, which has kept them at the forefront of the Japanese metal scene. Over the years, Earthshaker has consistently released new music, showcasing both their musical prowess and their ability to evolve with the times while staying true to their heavy metal roots. With album titles such as "40," a celebration of their four decades in music, "REMAINS -EARTHSHAKER LAST LIVE-," which hints at their electrifying live performances, and "Yesterday & Tomorrow," the band maintains its relevance and continues to resonate with both long-time fans and new listeners alike. Their commitment to their craft is evident in the consistent quality of their work, with "REAL" and "シェイカーズ・シェイキーズ" further solidifying their legacy in the pantheon of Japanese rock music.