Question: Which musician has a solo punk rock project: Toshiko Koshijima or Frank Iero?
Sentence (from "Toshiko Koshijima"): Toshiko Koshijima (こしじま としこ , Koshijima Toshiko , born March 3, 1980 in Kanazawa, Ishikawa) is a Japanese singer.
Relevant evidence: Yes