The first single from Kings of Leon’s fourth album Only by the Night, “Sex on Fire” is streaming now at the band’s MySpace. The song is in the “On Call” mode—a rocker that is restrained to ballad-y proportions, and the lyrics are as vague as ever (is it about gonorrhea? Getting busy in a burning building? A tumultuous relationship? You’ll never know.).

In other Kings of Leon news, the band have announced a full U.S. tour (dates are below) in support of Only by the Night (due out on September 23 via RCA). In addition, starting on September 1, and going through the release date, the band will be premiering a new home video documenting the making of Night every day.

Kings of Leon tour dates:
9.23 New York, NY: Webster Hall !
10.11 Las Vegas, NV: The Joint @#
10.12 San Diego, CA: House of Blues @#
10.15 Los Angeles, CA: Nokia Theatre @#
10.17 San Francisco, CA: Warfield Theatre @#
10.18 San Francisco, CA: Warfield Theatre @#
10.20 Seattle, WA: Paramount Theatre @#
10.21 Portland, OR: Schnitzer Hall @#
10.23 Denver, CO: The Fillmore Auditorium @#
10.25 Austin, TX: Austin Music Hall @#
10.26 Oklahoma City, OK: Bricktown Events Center @#
10.28 Houston, TX: Verizon Wireless Theater @#
10.29 Dallas, TX: Palladium Ballroom @#
10.31 Chicago, IL: Aragon Ballroom @#
11.01 Minneapolis, MN: Orpheum Theatre !#
11.03 St. Louis, MO: The Pageant !#
11.05 Milwaukee, WI: The Eagles Ballroom !#
11.07 Toronto, ONT: Kool Haus !#
11.08 Detroit, MI: The Fillmore !#
11.10 Washington, DC: DAR Constitution Hall !#
11.12 Boston, MA: Orpheum Theatre !#
11.15 Philadelphia, PA: Electric Factory Ballroom !#
11.18 Atlanta, GA: The Tabernacle !#
11.19 Nashville, TN: Nashville Municipal Auditorium !#
!: w/ The Whigs
@: w/ The Stills
#: w/ We Are Scientists