Radiohead revealed the band is reissuing two of its albums, "Kid A" and "Amnesiac," in a new album along with unreleased songs.

The rock band announced the news on Twitter Tuesday.

"We humbly submit KID A MNESIA to you," the band tweeted.

"It's a coming of age for Kid A & Amnesiac and it's joined by a new album, Kid Amnesiae, a memory palace of half-remembered, half-forgotten sessions & unreleased material. All three come out together on November 5th."

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Radiohead poses for a photo at Capitol Records in 1997.

Radiohead is releasing a combined album featuring unreleased songs to celebrate the 20th and 21st anniversary of two albums, ‘Kid A’ and ‘Amnesiac.’ (Photo by Jim Steinfeldt/Michael Ochs Archives/Getty Images)

"Kid Amnesiae" will feature unreleased songs that were recorded between 1999 and 2000. The album will be put out on Nov. 5 by XL Recording.

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As part of the announcement, Radiohead shared part of the never-before-heard song, "If You Say The Word."

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The release will mark the 20th and 21st anniversary of each album. "Kid A" was released in 2000 and "Amnesiac" was released in 2001.