Rilo Kiley has revealed details about their upcoming fourth album, entitled ‘Acid Tongue’.

The album was recorded in Van Nuys, California at Sound City Studios where Lewis and co-producers Dave Scher, Johnathan Rice and Jason Leder stayed for three weeks coming out with all-analog recordings.

Teaming up with several high profile artists, the album features numerous duets including “Carpetbaggers” with Elvis Costello, Chris Robson of The Black Crowes, Jonathan Rice and backing vocals on several tracks by Zooey DesChanel.

"It rocks a little harder”, said singer Jenny Lewis to Billboard.

‘Acid Tongue’ will be released in the U.S. on September 23 via Warner Bros. Records.

(by Victoria Tsigonis)