Karol G, Judeline, and rusowsky’s “BbY WOW,” released August 7 from the album *No Me Arrepiento de Sentir Tanto*, has driven the market’s near-certainty through dominant Spotify performance. The track has logged multiple weeks at No. 1 on the Global Daily chart, posted weekly streams exceeding 40 million in recent tracking periods, and topped national rankings across Latin America and Spain while reaching the Billboard Global 200 summit. Sustained algorithmic push, regional streaming strength, and the absence of comparable new competition have reinforced trader consensus on its frontrunner status for the September 25 weekly tally. An upset would require an unexpected mid-week viral surge or major new single release capable of closing a substantial streaming gap before the chart locks.