The Foo Fighters [ tickets ] have added several new North American dates to the summer leg of their continuing world trek supporting last year's "Echoes, Silence, Patience & Grace."

The alt-rock favorites, who continue the current Canadian leg of the outing tonight (3/28) in Edmonton, Alberta, have lined up fresh shows in July for Kansas City, MO (7/20); Grand Rapids, MI (7/22); Cleveland, OH (7/25); and East Rutherford, NJ (7/29). On sale dates can be found at the band's website.

The group has also announced that it will take part in September's Virgin Festival in Toronto. Aside from the band's Sept. 6 appearance, the two-day fest also features Bloc Party, Spiritualized, Wintersleep and others.

The Foo Fighters [ tickets ] scored five Grammy nods in December for their sixth studio effort, "Echoes, Silence, Patience & Grace," which surfaced in September, and went on to claim wins at last month's 50th annual awards ceremony for Best Rock Album and Best Hard Rock Performance for the album's first single, "The Pretender."

The song spent a record 18 weeks at the top of Billboard's Alternative/Modern Rock chart, with the second single, "Long Road to Ruin," also reaching the top of the modern rock pile.

"Echoes" follows the Foo Fighters' 2005 platinum-selling double-album, "In Your Honor," which spawned the No. 1 mainstream- and modern-rock hit "Best of You" and led to the band's biggest-selling tour to date, according to a press release. The new set reunites the band with Gil Norton (Pixies, Counting Crows), who also handled production work on the group's highly regarded 1997 debut as a full band (rather than a Dave Grohl solo project), "The Colour and the Shape."