Heel', available on their webstore, Isetan and Asmart stores. Available in the colors: Pink beige, Black, White, Black gold and Coral Red suede. On 2015 Perfume Exhibit happened at Tower Records SHIBUYA 8F as one of "Perfume 10th ANNIVERSARY PROJECT"! Perfume costumes and rare photos were available there. On September 18 - October 4 started the VOL.1 and on October 9 - November 1 the VOL.2 . Between September 21–30, the group began a ten-day series of events to celebrate their 15th anniversary as a group. Events included "PTA summit" on 9/21, "Perfume FES!! 2015" on 9/22, "3rd Perfume Dance Contest" on 9/23, and a series of concerts titled "3:5:6:9" (pronounced "San:Go:Roku:Kyu") a pun on "sugoroku", which is Japanese for "board game". The concerts centered on a large die which determined the songs that the group would perform. On September 26, 2015, they released a collection of their columns , 200 total, from TV Bros. magazine. Spanning 2007–2015, it was titled "Fan Service [TV Bros.]". On October 15, the next single "Star Train" was released. The song was used as the theme of Perfume's documentary "WE ARE Perfume -WORLD TOUR 3rd DOCUMENT", which chronicled their WORLD TOUR 3rd and their performance at SXSW. On November 26, they debuted the song "Next Stage With You", which was tied into the marketing campaign of the same name by Mercedes-Benz Japan. On December 5, Perfume was showcased in an episode of "Entertainment Nippon" by NHK World. In light of their upcoming documentary, the episode detailed the history of the group as well as the people behind the scenes that help the success of their live performances. On December 25, 2015 Perfume announced a fifth album to be released in the Spring of 2016, along with an accompanying nationwide arena tour. It was later revealed on February 14, 2016 entitled "Cosmic Explorer", to be released April 6, along with an accompanying 6th Tour by the same name. The single "Flash" was released together with the album "Cosmic Explorer", like an extra disc. "FLASH" was the theme song of live action adaptation of Chihayafuru. On March 12, 2016 Perfume performed as part of NHK Ashita he Concert to support the victims of the big earthquake. On the first part of World Tour Perfume held a 'Cosmic Explorer Cafe' in Hong Kong, Taipei (Taiwan) and Seoul (Korea), with a Costume Display for the fans. Along with