43% — Will Ella Langley be #1 on Spotify's Daily Top Songs USA chart for at least 12 chart days in June 2026 Kalshi 43% · 8 contracts · $4K volume · medium confidence Updated 2026-06-26 03:47:27 UTC Why this matters: This market asks whether Ella Langley will claim the #1 spot on Spotify's Daily Top Songs USA chart for at least 12 days during June 2026. The 26% probability reflects uncertainty about her sustained chart dominance against established competitors like Taylor Swift and Olivia Rodrigo. Chart performance depends on streaming volume, playlist placement, and release timing. Langley's ability to reach 12 chart days would require consistent high streaming momentum throughout the month—her related contract for 6 chart days prices in at 92%, suggesting traders see moderate confidence in her presence but skepticism about extended #1 dominance. The resolution will depend on cumulative daily chart positions tracked by Spotify through month-end, with June's final chart data determining the outcome. Key variables include competing releases from other major artists, the strength of Langley's current promotional cycle, and whether any single release gains sustained streaming strength. Key factors: - Ella Langley's current streaming trajectory and listener base relative to other top charting artists in June 2026 - Release schedule of competing tracks from Taylor Swift, Olivia Rodrigo, and other major artists during June that could displace her from #1 - Historical chart persistence: how many days Langley has previously held #1 positions and whether June represents an atypical surge or normal range - Playlist algorithm weighting by Spotify and broader listener engagement metrics that determine daily chart rankings - The gap between her 6-day contract price (92¢) and 12-day price (26¢) suggests traders view reaching double-digit #1 days as a substantial escalation in difficulty Contracts: - Will Taylor Swift be #1 on Spotify's Daily Top Songs USA chart for at least 3 chart days in June 2026?: At least 3 days — 3¢ Kalshi $2K (weight 53%) - Will Olivia Rodrigo be #1 on Spotify's Daily Top Songs USA chart for at least 15 chart days in June 2026?: At least 15 days — 21¢ Kalshi $612 (weight 16%) - Will Ella Langley be #1 on Spotify's Daily Top Songs USA chart for at least 9 chart days in June 2026?: At least 9 days — 89¢ Kalshi $553 (weight 14%) - Will Ella Langley be #1 on Spotify's Daily Top Songs USA chart for at least 12 chart days in June 2026?: At least 12 days — 81¢ Kalshi $386 (weight 10%) - Will Ella Langley be #1 on Spotify's Daily Top Songs USA chart for at least 15 chart days in June 2026?: At least 15 days — 3¢ Kalshi $201 (weight 5%) - Will Ella Langley be #1 on Spotify's Daily Top Songs USA chart for at least 6 chart days in June 2026?: At least 6 days — 94¢ Kalshi $63 (weight 2%) - Will Ella Langley be #1 on Spotify's Daily Top Songs USA chart for at least 12 chart days in June 2026?: At least 12 days — 52¢ Kalshi $13 (weight 0%) - Will Ariana Grande be #1 on Spotify's Daily Top Songs USA chart for at least 9 chart days in July 2026?: At least 9 days — 3¢ Kalshi $6 (weight 0%) --- ## Methodology SimpleFunctions aggregates live YES-side prices from Kalshi and Polymarket contracts bound to this question. For binary topics the headline is the liquidity-weighted mid-price (weight = log(1 + 24h volume) × freshness, where freshness is 1.0 if updated <24h, 0.7 if <7d, 0.4 otherwise). For multi-outcome (winner-take-all) topics the headline is the current leader's price — disjoint outcomes are never arithmetically averaged. Snapshots refresh every 5 minutes during market hours. ## SF Signal - SF Index, regime, and 30d Brier calibration are computed separately and surfaced at https://simplefunctions.dev/admin/calibration. - No SimpleFunctions index / regime / calibration signal is bound to this topic yet — the headline above is market-derived only. --- *Last verified: 2026-06-26T03:20:48.912Z* By SimpleFunctions — https://simplefunctions.dev/ Cite as: "43% per prediction markets (SimpleFunctions, June 2026)" Canonical: https://simplefunctions.dev/answer/spotifynum1usa Full data: https://simplefunctions.dev/api/public/query?q=Will%20Ella%20Langley%20be%20%231%20on%20Spotify's%20Daily%20Top%20Songs%20USA%20chart%20for%20at%20least%2012%20chart%20days%20in%20June%202026 Provider: SimpleFunctions — https://simplefunctions.dev