A few eyebrows may have been singed by the time No Doubt left the Nokia Theatre stage on Sunday. Zora was “Looking Hot” again, this time at the American Music Awards in Los Angeles. The first Zora prototype (the black one) of the GJ² Guitars collaboration between Grover Jackson and No Doubt guitarist Tom Dumont was featured prominently during the band’s performance, even getting an extreme closeup or two. The group was sounding tight and looking hot — literally, in this case. Keyboardist/trombonist Gabrial McNair, for one, could attest to feeling the heat of the pyrotechnics.