Judas Priest [ tickets ] has added new dates to its upcoming summer trek with special guests Whitesnake, which finds both of the classic rock acts celebrating important career milestones.

The tour, which kicks off July 1 in St. Charles, MO, now runs into late August, with a leg of dates in Florida and Georgia leading to a pair of East Coast shows (Aug. 22 in Columbia, MD, and Aug. 23 in Gilford, NH) that will finish off the trek. Details are included below.

A fixture on the summer concert circuit in recent years, including the Ozzfest and Metal Masters tours, Judas Priest is gearing up for the 30th anniversary of the group's 1980 release, "British Steel." The band will commemorate the event by playing the classic album in its entirety at upcoming live shows--including hit singles "Breaking the Law" and "Living After Midnight"--as well as songs from other albums.

Remastered in 2001 and reissued with a few bonus tracks, the fresh version of the three-decade old album preceded the band's most recent release, 2008's "Nostradamus," which debuted at No. 11 on The Billboard 200, becoming their highest charting album ever.

Whitesnake is also celebrating a pair of important anniversaries. The group is re-releasing two of its biggest albums--1984's "Slide it In" and 1989's "Slip of the Tongue"--in 20th and 25th anniversary deluxe editions, respectively. The re-issues, which hit stores June 30, will both feature dual CD/DVD sets with "numerous rare or previously unreleased audio and video bonuses," as well as 24-page expanded liner-notes booklets, according to a press release.

Last year, Whitesnake released its 11th and most recent studio album, "Good to Be Bad." It was the band's first album of new material in more than a decade, dating back to 1997's "Restless Heart."