Question: "I Was a Fool" is a song written and performed by Canadian duo Tegan and Sara, inspired by one of Rihanna's singles ,Unfaithful from her second studio album "A Girl like Me" (2006), written by who?
Sentence (from "I Was a Fool"): "I Was a Fool" is a song written and performed by Canadian duo Tegan and Sara for their seventh studio album, "Heartthrob".
Relevant evidence: No