Question: What song from Rihanna's album "Unapologetic" did pianist Tokio Myers play in semi-final 3 of the 2017 reality show "Britain's Got Talent"?
Sentence (from "India's Got Talent"): India's Got Talent (sometimes abbreviated as IGT) is an Indian reality television series on Colors television network, founded by Sakib Zakir Ahmed and part of the global British "Got Talent" franchise.
Relevant evidence: No