Amnesty International's twenty-fifth anniversary. Gabriel accepted and in June 1986, he performed alongside Sting, The Police, Lou Reed, and Joan Baez, with a set that opened with "Red Rain" and featured "Sledgehammer". Gabriel described it as "the best tour [he'd] ever been on". In the same month, Gabriel performed at London's Clapham Common, along with Boy George and Elvis Costello, for Artists Against Apartheid. Gabriel eventually embarked on the ninety-three date This Way Up tour to support So, beginning in Rochester, New York on 7 November 1986. One of the dates was a special two-night residency (20–21 December) at Tokyo's Meiji Jingu Stadium to fund a global computer system for the University for Peace, a United Nations project. The tour suspended in early 1987 until June when it reached Europe, before going on to America and finishing at the Lycabettus Amphitheatre in Athens in October. Gabriel partially performed So at The Prince's Trust Concert and at Human Rights Now! Tour in 1988. Critical reception So received mostly favourable reviews from music critics. Jon Pareles of The New York Times wrote "only a handful of Western rock musicians have managed to use exotic rhythms and instruments with so much ingenuity and conviction". Pareles also praised his vocals, describing them as "grainy but not bluesy, ageless and joyless, the voice of some ancient mariner recounting disasters". Tim Holmes writing for Rolling Stone described the album as "a record of considerable emotional complexity and musical sophistication" and was pleased that the records would assist exposing Gabriel to mainstream pop music. Terry Atkinson of Los Angeles Times viewed the album as offering "an amazing variety of tones, moods, and topics and a consistently powerful level of expression". Although disliking "Big Time", Atkinson concludes So is "a great album, possibly Gabriel's best". Steve Hochman, also of Los Angeles Times, praised Gabriel's reinvention too, describing it as "real progress" compared to the contemporaneous work of other progressive rock acts such as Genesis, GTR and Marillion. Chicago Tribunes Lynn Van Matre praised the album's "wave of funky rhythms" and called for more appreciation of Gabriel's talent, but noted a lack of "quirkiness" and said there were no tracks as impactful as his 1980 single "Biko". Robert Christgau was also lukewarm in The Village Voice, writing that "Gabriel's so smart he knows rhythm is what makes music go, which relieves him of humdrum melodic responsibilities but doesn't get