When comparing the supporting range of Kehlani and Rosé, it's important to consider their musical styles and strengths.
Kehlani is known for her R&B and soulful influences, often showcasing her vocal versatility with smooth runs, emotional delivery, and a wide range of dynamics. Her background in various musical genres allows her to blend melodic and rhythmic elements effectively, making her a strong supporting artist in collaborative settings.
Rosé, from BLACKPINK, has a distinct vocal tone and a strong pop presence. Her supporting range often shines through in harmonies and background vocals, especially given her experience in K-pop, where teamwork and vocal layering are critical. Rosé's style is more geared towards pop, allowing her to contribute effectively in those contexts.
Ultimately, the "better" supporting range may depend on the specific musical context and compatibility of the artists involved. Both have different strengths that can complement others beautifully in their respective genres.