BOYNEXTDOOR has been appointed as the global ambassador for Buldak Ramen. On February 9, 2026, Samyang Foods officially announced that BOYNEXTDOOR would be the models for Buldak's new global campaign, 'Hotter Than My EX.' Samyang Foods stated that BOYNEXTDOOR's unique style of expressing honest, unfiltered emotions and everyday feelings made them a perfect fit for the campaign's distinctive message. The 'Hotter Than My EX' campaign aims to transform Buldak's signature spiciness into a cultural code symbolizing unwavering self-esteem and self-control after a breakup. As part of this collaboration, BOYNEXTDOOR released a special campaign version of their hit track 'Earth, Wind & Fire,' reimagined as 'Earth, Wind & Fire (Hotter Than My EX Ver.).' The members actively participated in rewriting the lyrics to align with the campaign's bold message. Additionally, the campaign video is being showcased on a billboard in New York's Times Square, marking a global milestone for both the group and the Buldak brand. ()