is a Japanese idol girl group, commonly abbreviated as MCZ or . The four members of MCZ are known for energetic performances, incorporating elements of ballet, gymnastics, and action movies. MCZ is notable for being the first female group to hold a solo concert at National Olympic Stadium in Japan, as well as providing theme music for anime television series such as Sailor Moon, Dragon Ball, and Pokémon. In 2013, the group grossed the fourth highest total sales revenue by a music artist in Japan, with over ¥5.2 billion. During 2016, about 636,000 people attended their live concerts, the most ever for a Japanese female group. MCZ was ranked as the most popular female Japanese group from 2013 to 2018, and 2020 to 2022. MCZ has collaborated with other performers, including a 2015 recording with American hard rock band KISS, marking KISS's first collaborative recording. In 2016, their first overseas tour titled Trans America Ultra Live was held in Hawaii, Los Angeles, and New York. They sold more than 3 million physical copies in Japan. Members On stage, Momoiro Clover Z members are easily distinguished by the colors of their clothes, similar to the characters from Super Sentai or Power Rangers. In some songs and music videos, the group loosely parodies them. Before the group made its debut, other girls were in the lineup: Sumire Fujishiro, Manami Ikura, Yukina Kashiwa (later a member of Nogizaka46), Tsukina Takai (later became a member of SKE48), Miyū Wagawa, and Runa Yumikawa. Timeline History 2008-2009: Conception and beginnings The group was formed in the spring of 2008 as a 5-member unit, originally named Momoiro Clover ("Pink Clover" or, literally, "Peach-Colored Clover"). The name was chosen to imply that the group was composed of innocent girls who wanted to bring happiness to people. Ariyasu Momoka joined the group after their first single. Later in 2011, after the departure of Akari Hayami from the group, management added the letter "Z" to the group's name. The group's slogan is . Momoiro Clover began as a street act in 2008, performing for bystanders in Tokyo's Yoyogi Park. As most members were students attending school on weekdays, the group was active mainly on weekends, leading them to be nicknamed . In a one-year period, Momoiro Clover had a number of line-up changes. In March 2009, they became a five-member unit composed of Reni Takagi, Kanako Momota, Akari Hayami, Shiori