Ella Langley leads the Grammys 2027 Best New Artist market at 64.5% implied probability, driven by her dominant 2026 chart run and a June rule change that raised eligibility submissions from three to four. Her sophomore album *Dandelion* topped the Billboard 200 multiple times, while the crossover hit “Choosin’ Texas” logged over 20 weeks at No. 1 on the Hot 100 and earned Song of the Summer honors, fueling broad industry momentum for a country act in the general field. Sienna Spiro follows at 26.5% on streaming and social metrics, with a crowded field of emerging acts trailing below 8%. Traders are pricing in Langley’s frontrunner status ahead of November 16 nominations, though final voting remains months away and historical upsets in the category underscore the inherent unpredictability.