Chemical Brothers

'Button' Pushers

ChemicalVeteran electronica purveyors the Chemical Brothers return this week with a new Astralwerks album, "Push the Button." In addition to a guest turn from rapper Q-Tip on the single "Galvanize," the 11-track set features Charlatans frontman Tim Burgess on "The Boxer" and Mos Def's brother, Anwar Superstar, on the hip-hop leaning "Left Right."

Bloc Party vocalist Kele Okereke appears on the frantic "Believe," while up-and-coming U.K. sibling act the Magic Numbers are heard on the psychedelic hymn "Close Your Eyes." Other highlights include the ominous "Hold Tight London," which sports a bass line akin to Tortoise or Can, and closer "Surface to Air," a smile-inducing, seven-minute instrumental with a pulsating synth melody.

"Push the Button" is the follow-up to 2002's "Come With Us," which debuted at No. 1 on Billboard's Top Electronic Albums chart and No. 32 on The Billboard 200. The set spawned three major hits on Billboard's Hot Dance Music/Club Play chart, including a No. 1 placement for "It Began in Afrika," a No. 2 showing for "Star Guitar," and a No. 8 peak for the title track.

The group is in the midst of the annual Big Day Out festival tour of Australia and New Zealand and will begin a world tour Feb. 9 in Osaka, Japan.