out at 20 minutes), compared with the album length of 11 minutes and 28 seconds. Live renditions basically followed the album version with a few notable differences: an extra guitar solo was played after the second verse, the talk-box solo on guitar was substituted with a Minimoog solo and to the coda were added a quiet Hammond-led section and a crescendo reprise of the guitar solo with aggressive drumming. Waters, who sang on both the studio and live versions of "Pigs (Three Different Ones)", also added his signature screams throughout live performances of this song during the 1977 tour. While playing on the 1977 tour, Waters shouted a different number for each concert. This purportedly had the purpose of identifying bootleg recordings. Also, Snowy White would play bass guitar while Waters played rhythm electric guitar with his black with white pickguard Fender Stratocaster. When this song was performed in Montreal on 6 July 1977, a disruptive fan angered Waters by throwing a beer bottle onto the stage. While the band played toward the climax of the song's jam section, Waters called the fan onto the stage through the microphone, then spat in his face after pretending to help him up. This concert, of which bootleg recordings exist, has been cited as a catalyst for Pink Floyd's next album, The Wall. In 1987, on tour to promote his solo album Radio K.A.O.S., Waters performed a shortened version of the song, featuring only the first two verses and shorter guitar solos between them as part of an extended Pink Floyd medley. Waters played Gilmour's original bass parts rather than rhythm guitar, and would do so again on all subsequent live performances. Waters would not play the song live again until 2016, on a brief tour of the US and Mexico. These performances were almost identical to the studio version and were accompanied by a large amount of anti-Donald Trump imagery, including caricatures, displays of controversial quotes by Trump, and the words "Fuck Trump" (changed to "Trump Is a Pig" on some dates) displayed at the end of the song. The song remained in Waters' setlist for his 2017 Us + Them Tour, once again being played in its entirety and with the anti-Trump images. While the response to these was mostly positive, some fans booed or even walked out during the song. Waters responded by saying "I find it slightly surprising that