Three weeks from today (June 2), U2 will put out a 30th anniversary edition of The Joshua Tree, and now they've given us a second taste of the music within. You can stream a live version of "I Still Haven't Found What I'm Looking For" above.

The song was recorded at Madison Square Garden in 1987 and features the New Voices of Freedom Choir conducted by Dennis Bell. The press release we received bills it as "never heard before," but the version that appears on the Rattle and Hum album, which also features the choir, was from the Sept. 28, 1987 show. Neither nor three U2 fan sites say that the choir was present at the second Garden date, on Sept. 29. In the Rattle and Hum documentary, a rehearsal take with the choir was used.

The concert is included on the Deluxe and Super Deluxe Editions of The Joshua Tree, with the Super Deluxe Edition adding 21 remixes, b-sides and outtakes. Last month, the group previewed a remix of "Red Hill Mining Town" that was made by Steve Lillywhite. It features a newly recorded vocal from Bono and brings the horns, courtesy of the Arklow Shipping Silver Band, higher into the mix.

Released as a single in 1987, "I Still Haven't Found What I'm Looking For" became their second consecutive No. 1 hit, following "With or Without You."

U2 kick off their tour commemorating the 30th anniversary of The Joshua Tree in Vancouver, B.C. It will play arenas and stadiums across North America before winding it up on July 1 in Cleveland. A week later, they will begin a European leg in London that will conclude Aug. 1 in Brussels, Belgium.

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