Wellerman is a traditional 19th-century whaling song from New Zealand, named for the supply ships sent by the Weller brothers to whaling crews waiting for provisions. The song lay largely outside mainstream music until late 2020, when Scottish singer Nathan Evans posted his version on TikTok and other creators layered harmonies over it in duets. The trend sparked a worldwide sea shanty revival and a chart hit in 2021, and the chorus remains a shorthand for teamwork, sailing and communal singing online.