Gnarls Barkley have announced their new single, as the follow-up to their number 1 hit Crazy.

The duo will release Smiley Faces as the second track from their hit album St Elsewhere on July 17th. The single will be available as a variety of formats, all of which come backed by new b-sides.

The CD and 12" both feature fellow St Elsewhere track Go Go Gadget Gospel, while a second CD includes a live version of the title song recorded on Later With Jools Holland.

Fans of the duo in London can catch Gnarls Barkley live tomorrow on July 6th, as they make their UK live debut at the Hammersmith Apollo.

CD 1 Track Listing:

1. Smiley Faces
2. Smiley Faces (Live On Later With Jools Holland)

CD 2 Track Listing:

1. Smiley Faces
2. Go Go Gadget Gospel
3. Smiley Faces (Video)

12" Track Listing:

1. Smiley Faces
2. Go Go Gadget Gospel
3. Smiley Faces (Instrumental)