RADWIMPS 4: Okazu no Gohan , stylised as RADWIMPS 4 ~Okazu no Gohan~, is Japanese rock band RADWIMPS' fourth album, released on December 6, 2006. It was the band's break-through commercial album, debuting at number five on Oricon's albums charts, and was their first album to be certified platinum by the RIAJ.

Altocolony no Teiri is Japanese rock band Radwimps' fifth album, released on March 11, 2009. It was preceded by the single "Order Made" in 2008, which became the band's first number one single. The album was a critical and commercial success, with critics noting the successful experimental growth in the band's sound. The album was certified platinum by the Recording Industry Association of Japan, and as of 2011 is tied for their most commercially successful work with the band's previous album, Radwimps 4: Okazu no Gohan.