“Envolver,” the global hit song with around half a billion Spotify streams, took its singer, Anitta, less than a day to write. The Brazilian star says Warner Music Latina, the label that has handled her Spanish-language releases, thought the record should be a duet with a male singer. But Anitta went ahead solo. The song’s music video, which she directed, currently has around 430 million views on YouTube, and the plank dance that she performs in the video spawned a TikTok trend.