Marilyn Manson and heavy rock icons Slayer are to head out on the road together this summer (07). The two rock heavyweights have announced they will co-headline a major North American tour, beginning in July (07). The two acts will play 25 cities and wrap up the tour in September (07). Both groups will play a series of European festival shows, including the UK's Download Festival at Donington (09JUN07) and Stockholm's Metaltown Festival (30JUN07).