The fourth installment of the Projekt Revolution trek is set to kick off July 25 with tour founders Linkin Park [ tickets ] on the main stage alongside My Chemical Romance [ tickets ], Taking Back Sunday [ tickets ], HIM [ tickets ], Placebo and Julien-K.

The second stage, dubbed the Revolution Stage, will play host to Mindless Self Indulgence, Saosin, The Bled, Styles of Beyond and Madina Lake.

The outing will traverse the US into September, and also includes a stop in Toronto. A couple of cities, including the launch city, will be announced in about two weeks; the rest of the schedule is confirmed and listed below. Tickets go on sale nationwide May 19.

Projekt Revolution--which has partnered with sponsors Major League Baseball, "Halo 3" for Xbox 360, Monster Energy Drink, Etnies and Nowwhat.com--merges a variety of musical styles handpicked by the members of Linkin Park.

"Linkin Park is thrilled to be joined by this amazing group of artists and I know the audience will share in our excitement," vocalist Chester Bennington said in a statement.

Tour organizers and Linkin Park's Music for Relief organization have been working to make the event environmentally conscious, according to a press release. Besides making it a "green" outing, Projekt Revolution and Music for Relief will donate $1 from each ticket to American Forests for their global "re-leaf" program, which plants trees to help lessen the effects of global climate change.

Linkin Park will release its third studio album, "Minutes to Midnight," next week. The first single, "What I've Done," is already No. 1 at rock and modern-rock radio.

The Grammy-winning band will usher in the new album with a release-eve event May 14 that will see an upcoming Linkin Park concert air simultaneously in movie theaters across the country and online. The group will broadcast its May 11 concert at New York City's Webster Hall as part of National CineMedia's FATHOM series. A list of cinemas running the film is available at FATHOM's website.

Linkin Park has sold 40 million records worldwide since its 2000 debut, "Hybrid Theory," which alone moved more than 18 million copies, according to a press release.