Will Rihanna be on The Tonight Show Starring Jimmy Fallon before 2027
Liquidity-weighted aggregate sits at 16% across 20 Kalshi contracts.
Implied probability
Kalshi
16%
20 contracts
Polymarket
—
not bound
Cross-venue gap
—
single venue
24h move
—
no pin
24h volume
$45
20 contracts
Closes
Jan 1, 2027
132 days
30-day trend
Bracket families
20 clusters across 20 contracts.
These contracts were grouped by title similarity. The headline aggregate combines all clusters; verify the cluster you actually need before quoting a number.
Cluster 1
Will Timothée Chalamet be on The Tonight Show Starring Jimmy Fallon before 2027
Cluster 2
Will Travis Kelce be on The Tonight Show Starring Jimmy Fallon before 2027
Will Travis Kelce be on The Tonight Show Starring Jimmy Fallon before 2027?: Travis Kelce
KXMEDIAGUESTFALLON-27-TRA
Cluster 3
Will Taylor Swift be on The Tonight Show Starring Jimmy Fallon before 2027
Will Taylor Swift be on The Tonight Show Starring Jimmy Fallon before 2027?: Taylor Swift
KXMEDIAGUESTFALLON-27-TAY
Cluster 4
Will Ariana Grande be on The Tonight Show Starring Jimmy Fallon before 2027
Will Ariana Grande be on The Tonight Show Starring Jimmy Fallon before 2027?: Ariana Grande
KXMEDIAGUESTFALLON-27-ARI
Cluster 5
Will Bad Bunny be on The Tonight Show Starring Jimmy Fallon before 2027
Will Bad Bunny be on The Tonight Show Starring Jimmy Fallon before 2027?: Bad Bunny
KXMEDIAGUESTFALLON-27-BAD
Cluster 6
Will Beyoncé be on The Tonight Show Starring Jimmy Fallon before 2027
Will Beyoncé be on The Tonight Show Starring Jimmy Fallon before 2027?: Beyoncé
KXMEDIAGUESTFALLON-27-BEY
Cluster 7
Will Billie Eilish be on The Tonight Show Starring Jimmy Fallon before 2027
Will Billie Eilish be on The Tonight Show Starring Jimmy Fallon before 2027?: Billie Eilish
KXMEDIAGUESTFALLON-27-BIL
Cluster 8
Will Charli D’Amelio be on The Tonight Show Starring Jimmy Fallon before 2027
Cluster 9
Will Drake be on The Tonight Show Starring Jimmy Fallon before 2027
Will Drake be on The Tonight Show Starring Jimmy Fallon before 2027?: Drake
KXMEDIAGUESTFALLON-27-DRA
Cluster 10
Will Dwayne “The Rock” Johnson be on The Tonight Show Starring Jimmy Fallon before 2027
Cluster 11
Will Harry Styles be on The Tonight Show Starring Jimmy Fallon before 2027
Will Harry Styles be on The Tonight Show Starring Jimmy Fallon before 2027?: Harry Styles
KXMEDIAGUESTFALLON-27-HAR
Cluster 12
Will Jennifer Lawrence be on The Tonight Show Starring Jimmy Fallon before 2027
Cluster 13
Will Kendrick Lamar be on The Tonight Show Starring Jimmy Fallon before 2027
Will Kendrick Lamar be on The Tonight Show Starring Jimmy Fallon before 2027?: Kendrick Lamar
KXMEDIAGUESTFALLON-27-KEN
Cluster 14
Will Kim Kardashian be on The Tonight Show Starring Jimmy Fallon before 2027
Cluster 15
Will Kylie Jenner be on The Tonight Show Starring Jimmy Fallon before 2027
Will Kylie Jenner be on The Tonight Show Starring Jimmy Fallon before 2027?: Kylie Jenner
KXMEDIAGUESTFALLON-27-KYL
Cluster 16
Will LeBron James be on The Tonight Show Starring Jimmy Fallon before 2027
Will LeBron James be on The Tonight Show Starring Jimmy Fallon before 2027?: LeBron James
KXMEDIAGUESTFALLON-27-LEB
Cluster 17
Will Leonardo DiCaprio be on The Tonight Show Starring Jimmy Fallon before 2027
Cluster 18
Will Lionel Messi be on The Tonight Show Starring Jimmy Fallon before 2027
Will Lionel Messi be on The Tonight Show Starring Jimmy Fallon before 2027?: Lionel Messi
KXMEDIAGUESTFALLON-27-LIO
Cluster 19
Will Logan Paul be on The Tonight Show Starring Jimmy Fallon before 2027
Will Logan Paul be on The Tonight Show Starring Jimmy Fallon before 2027?: Logan Paul
KXMEDIAGUESTFALLON-27-LOG
Cluster 20
Will Margot Robbie be on The Tonight Show Starring Jimmy Fallon before 2027
Will Margot Robbie be on The Tonight Show Starring Jimmy Fallon before 2027?: Margot Robbie
KXMEDIAGUESTFALLON-27-MAR
Analysis
This probability reflects the likelihood that Rihanna will appear on The Tonight Show Starring Jimmy Fallon at least once between now and the end of 2026. At 20%, the market suggests this is an unlikely but plausible outcome over the next six months. The probability is shaped by Rihanna's recent activity level—she has been less visible in traditional talk-show promotion compared to the comparison artists listed. Her appearance rate on late-night shows historically correlates with album or major project releases, which would serve as the primary catalyst for a Tonight Show booking. The market is pricing in both her unpredictable public schedule and the general rarity of any specific artist appearing on a particular show within a given timeframe. Resolution will occur on December 31, 2026, with the bet settling based on whether she made a confirmed appearance.
- ›Rihanna's current project status—whether she has music, film, or business ventures launching in 2026 that would require traditional media promotion
- ›Her historical frequency on The Tonight Show compared to other major artists, and whether recent years show increasing or decreasing talk-show participation
- ›The number of episode air dates remaining in 2026 and typical guest booking patterns for the show, which limit total opportunities
- ›Competition for guest slots from other major entertainment figures with scheduled releases or promotions in the same period
- ›Any confirmed tour dates, album announcements, or other public commitments Rihanna has made that typically precede late-night appearances
What moved the line
- Aug 17Timothée Chalamet↑11pp31→42¢ · Kalshi
- Aug 20Dwayne “The Rock” Johnson↓10pp39→29¢ · Kalshi
- Aug 21Timothée Chalamet↑9pp37→46¢ · Kalshi
- Aug 20Taylor Swift↓9pp24→15¢ · Kalshi
- Aug 17Dwayne “The Rock” Johnson↑9pp25→34¢ · Kalshi
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These markets stopped trading. Last odds and any captured outcome are shown above — full settlement detail lives at the venue.
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In general
How we compute these odds
SimpleFunctions aggregates live prediction-market contracts from Kalshi and Polymarket. Each slug groups contracts that resolve on the same underlying event, identified by venue event_id.
For binary slugs, the headline probability is the liquidity-weighted mid-price across all bound contracts. For multi-outcome slugs (e.g. elections with 3+ candidates), the headline is the leader’s price; we never arithmetically average disjoint outcomes — that would produce a number with no real-world meaning.
Snapshots refresh every 5 minutes during market hours; daily aggregates are computed at 04:00 UTC. The 30-day sparkline is drawn from per-ticker daily means stored in market_indicator_daily; 24h delta and movement events are derived from the same source.
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