**BbY WOW by KAROL G, Judeline, and rusowsky leads trader sentiment at 81% implied probability for the #2 U.S. Spotify song the week of September 18, 2026, driven by its sustained streaming momentum and recent chart gains.** The track, released in early August, rocketed to No. 1 on the global Spotify and Billboard Global 200 charts with weekly streams exceeding 42 million worldwide and strong U.S. performance (peaking at No. 2 with over 7 million weekly streams as of the Sept. 10 tracking period). On recent U.S. daily and weekly charts, it sits at No. 2 behind Ella Langley’s “Choosin’ Texas,” outpacing Malcolm Todd’s “Earrings,” Olivia Rodrigo’s “stupid song” and “the cure,” and other titles. Its crossover appeal as a predominantly Spanish-language hit, combined with consistent daily gains and cultural buzz around the Karol G collaboration, has solidified trader consensus around its positioning. Lower-probability outcomes like Rodrigo’s tracks or Tame Impala’s “Loser” reflect earlier 2026 peaks that have since cooled without comparable recent catalysts. The market reflects skin-in-the-game assessment of ongoing streaming data ahead of the next weekly update, with BbY WOW’s trajectory providing the clearest edge amid typical midweek volatility in chart races.