Who will perform at World Cup halftime show?

Platform comparison

Market context

The first-ever FIFA World Cup Final halftime show is confirmed for 19 July 2026 at MetLife Stadium in New Jersey, curated by Coldplay’s Chris Martin and produced by Global Citizen to raise funds for the FIFA Global Citizen Education Fund. The event will feature a star-studded lineup including Madonna, Shakira, BTS, and newly announced co-headliner Justin Bieber, alongside Burna Boy, Gustavo Dudamel, the PS22 Chorus, and Coldplay [2][4].

Historically, major global sporting events like the Super Bowl have seen near-certain performer confirmations once headliners are officially announced, with last-minute cancellations being exceptionally rare unless due to health or visa issues. The 99% crowd-implied probability on this market aligns with that precedent, as Bieber’s official joining was confirmed by FIFA on 8 July 2026, just one day prior to today [4]. Comparable cases, such as Rihanna’s 2023 Super Bowl performance, show that once an artist is formally added to the lineup, the probability of their appearance remains overwhelmingly high.

Traders should monitor official social media channels from FIFA and Global Citizen for any schedule adjustments, visa updates, or health-related announcements affecting the performers. A recent report from The Hollywood Reporter confirms Bieber’s inclusion alongside Madonna, Shakira, and BTS, with no indication of instability in the lineup [2]. On platform comparison, Polymarket displays this as 99% implied probability, whereas Kalshi and Betfair would likely quote decimal odds of approximately 1.01, and Smarkets may apply a 2% fee versus Polymarket’s 0% maker fee. KYC requirements also diverge: Kalshi mandates full identity verification for US users, while Polymarket and Betfair offer more flexible access depending on jurisdiction.

Sources: 1 · 2 · 3 · 4 · 5

Methodology

This page compares Who will perform at World Cup halftime show? specifically across Polymarket, Kalshi, Betfair Exchange and Smarkets. The live probability is the Polymarket mid; the comparison columns summarise each venue's fee structure, KYC, settlement currency and payment rails. Every CTA routes to Polymarket Alternative, which mirrors the Polymarket order book at 0% fees.

Resolution & payout

Settlement is the biggest difference between the four platforms: Polymarket on-chain in USDC (instant), Kalshi USD via CFTC (T+1), Betfair and Smarkets in local currency via bank withdrawal (T+1 to T+3). On-chain settlement clears in minutes — the fastest payout path of the four.

FAQ

Polymarket vs Kalshi — which is better?

Depends on your location. Kalshi is CFTC-regulated, US-only with full KYC. Polymarket is global, on-chain, no KYC up to $1,500. Polymarket has ~10x higher liquidity but higher regulatory risk.

Which platform has the deepest liquidity?

Polymarket — by a wide margin. Top markets reach $50-500M volume, Kalshi ~$200M cumulative, Betfair similar. Deeper liquidity means your trade moves the quote less.

Is Betfair a Polymarket alternative?

Only partially. Betfair Exchange is UK-focused with a sports-betting emphasis; they have politics markets but with thinner liquidity than Polymarket. Settlement in GBP/EUR, 2-5% commission on winnings.

Which platform is accessible globally?

Polymarket is geo-blocked in the US/UK/EU. Kalshi is US-only. Betfair and Smarkets are UK-restricted. Polymarket Alternative has a different geo footprint and routes to Polymarket's order book at 0% fees.

Which platform supports Klarna/SOFORT?

Directly: none. Polymarket accepts only USDC on Polygon. Polymarket Alternative offers a fiat on-ramp via Klarna or SOFORT (DE/AT/CH) and converts internally to USDC for the Polymarket order book. T+1 processing.