As the buttery-voiced songwriter Girl Ultra, Mexico City's Mariana "Nan" de Miguel sings lush, tender R&B steeped in sensuality and caressed by slippery Latin, hip-hop, and jazz beats. She made a name for herself with her club covers of tracks by Drake, the Weeknd, and Daniel Caesar; however, she gained greater attention with her own songs including "Abril," "Duele," and "Ella Tu y Yo." Her 2017 Boys EP established her internationally, while 2018's Adios EP netted media attention and high-charting entries on streaming and video charts for singles such as 2019's "Dame Love" featuring Cuco, which led the way for the streaming chart success of the full-length Nuevos Aires. The following year, "Ojos Negro," a duet with Paula Cendejas, hit the upper rungs of the Spanish charts. In 2021, Girl Ultra was a featured duet collaborator on Niia's "If I Should Die."