5x20 All the Best!! 1999–2019
In a press conference on the same day, member Jun Matsumoto expressed interest in releasing a 20th anniversary best-of album and a video collection.By May 29, the majority of CD shops and online stores had sold out of its allocation of pre-orders and it was discovered that the album was being resold for higher than its suggested retail price.[8] In response, J Storm arranged for additional production of the limited editions, available for pre-order from June 1 to July 12, to be shipped mid-August.[14] On July 1, 2021, member Kazunari Ninomiya appeared on video on their SNS promoting the digital release of the album as a special version.[22] It sold 103,000 copies on its third day, which brought the album's total sales to 1.099 million, making it the first million-seller of the Reiwa era.[23] According to Billboard Japan, the album sold 740,114 copies from June 24–25, 2019, which set the record for the highest first-week sales in 2019.