Tamai, and Ayaka Sasaki. To support and promote their first indie single, "Momoiro Punch", Momoiro Clover took advantage of school holidays from May to August and went by minibus on a long tour across Japan. They gave a total of 104 concerts in 24 electronic stores of the Yamada Denki network. The girls slept in the minivan, and group's managers drove. In the middle of the tour, Momoka Ariyasu was added to the group as a sixth member. The single was sold only at the group's live events and those sales were enough for it to place 11th in the Oricon Daily Singles Chart and 23rd in the weekly chart. 2010: Major debut In March 2010, the girls stated their goals: to take first place on Oricon, to participate in Kōhaku Uta Gassen, to perform at Budokan. They usually performed in a small club with live music or on a roof of a department store. They sometimes set a simulated stage of National Olympic Stadium, where notable musicians are allowed to perform. Their first major-label single "Ikuze! Kaitō Shōjo" was released in May. The single debuted on Japan's Oricon Daily Singles Chart at the first position, and at number 3 for the week. Momoiro Clover then moved to King Records. The group's first single with King was "Pinky Jones", composed by Narasaki from the Japanese rock band Coaltar of the Deepers with a "more chaotic" approach than previous songs. December 24 marked Momoiro Clover's first solo concert at a concert hall. Nihon Seinenkan, a venue with a capacity of 1,300 seats, was sold out in 30 minutes. 2011: Shift to Momoiro Clover "Z" In January 2011 at the release event for a new song, sub-leader Akari Hayami stated that she had decided to withdraw from the group in April. Hayami explained that her character was not suited to being an idol and that her dream was to become an actress. At the April 10 Akari Hayami "graduation" concert, the group's management announced the name change to Momoiro Clover Z after Hayami's departure. In Japan, symbolizes ultimateness and this letter is often appended to a title (e.g., Mazinger Z and Dragon Ball Z). Z is officially pronounced as (British pronunciation) when the name is used in spoken English. The band has gone on record saying in an interview that the Z in the title is a reference to the famous anime