"We're going to start rehearsing very soon," drummer Taylor Hawkins tells Billboard.com of the trek, which will focus on the less aggressive songs on the 2005 double album "In Your Honor."

Although the Foo Fighters are taking it easy until frontman Dave Grohl's first baby is born, the band is still planning to follow through on a previously discussed acoustic tour. "We're going to start rehearsing very soon," drummer Taylor Hawkins tells Billboard.com of the trek, which will focus on the less aggressive songs on the 2005 double album "In Your Honor."

Hawkins expects rehearsals to begin right after the April 24 completion of a two-week solo tour with his band the Coattail Riders. The group's self-titled debut was released March 21 via Thrive Records.

The Foos are already slated to play several U.K. festivals in June, but no North American dates have been announced yet. "We might do some stuff before [June], but there is nothing on the books," says Hawkins, adding, "We're knockin' some stuff around, though."

For the acoustic dates, the Foos have signed up an auxiliary backing band featuring multi-instrumentalist Petra Haden, pianist Rami Jaffee and percussionist Drew Hester. Haden and Jaffee both guested on "In Your Honor"; Haden's Foo Fighters association dates back a decade, when her band, that dog, toured with the Foos in North America.

Despite his impending fatherhood, Grohl has found time to guest behind the drums on the new album from Juliette & the Licks, who are fronted by actress Juliette Lewis. The as-yet-untitled set is expected in early fall.