1 is the first collaboration between alternative rock artist Matthew Sweet and Bangles singer/guitarist Susanna Hoffs.

Factory in 2006, the album contains 15 cover versions of songs from the 1960s and 1970s.

The album was a result of their mutual love for songwriting from the 1960s.

[3] Matthew Sweet and Susanna Hoffs decided to record an album together in dedication of that era consisting of only cover versions.

Factory released their second album, Under the Covers, Vol.