5x20 All the Best!! 1999–2019

5x20 All the Best!! 1999–2019 (stylized as 5×20 All the BEST!! 1999–2019) is the fifth greatest hits album by Japanese boy band Arashi. It was released through J Storm on June 26, 2019. The album debuted at the top spot of the Oricon Weekly Albums chart, selling 1,304,251 copies in its first week of release in Japan. It spent the most weeks at number one of any album on the Oricon Albums Chart in 2019, with four, and was both the best-selling album of 2019 in Japan, as well as worldwide, with 3.3 million copies sold, eventually becoming the world's best-selling album of the year for 2019.