In January 1978, the group embarked on a US tour which would only last one to two weeks because of multiple show cancellations and deterioration within the group. These issues primarily involved tension between Malcolm McLaren, Johnny Rotten and Vicious, with Rotten accusing McLaren of trying to "wreck the very thing that made the Sex Pistols great," and the issue of Vicious's worsening heroin habit and negative interactions with members of the audience. In San Antonio, Vicious famously hit an audience member on the head with his bass; the audience member had antagonised Vicious, who shouted out "faggot fucker" before hitting him. Before Sex Pistols took the stage of the Longhorn Ballroom in Dallas, Vicious, again in heroin withdrawal, carved the words "gimme a fix" into his bare chest with a razor. In autumn 1977,[timeframe?] the Sex Pistols began to perform the controversial song "Belsen Was a Gas" live for the first time. The song was most likely Vicious's only contribution to the band during his tenure as a member, even though it was composed during his time in the Flowers of Romance. Vicious would also perform this song during his brief solo career after the band's split.