"One Day" is a song performed by American reggae singer Matisyahu, first released in 2008, his first single since "Jerusalem (Out of the Darkness Comes Light)".

The song expresses a hope for an end to violence, and a prayer for a new era of peace and understanding.

[1] In an interview with Spinner, Matisyahu told them: "'One Day' is the song I've been wanting to make since I started my career.

It is an anthem of hope with a big beat, the kind of song that makes you bob your head and open your heart at the same time.

The music video shows a number of people hanging posters of Matisyahu on the street.