When Costello appeared on Saturday Night Live
in 1977 (filling in for the Sex Pistols, who were denied entry into the US), it was decided that he would perform this song. Elvis, however, had other ideas. After playing some of "Less Than Zero," he halted the performance and played the unreleased "Radio Radio
" instead, earning him a ban from the show that lasted until 1989, when he returned as musical guest.
Costello had no interest in playing "Less Than Zero" for an American audience (especially on a late-night comedy show), since its subject matter was decidedly English.