STOCKHOLM (AP) — Festival organizers say hip-hop and R&B singer Lauryn Hill has canceled all tour dates in Europe this summer for health reasons.Stockholm Jazz Festival spokeswoman Liisa Tolonen says the artist’s agent informed the festival late Tuesday that all performances in Europe by the former Fugees singer have been canceled. This includes shows in Sweden, Greece, the Netherlands, Poland, Germany, Italy, Switzerland, France, and Austria. Tolonen said Wednesday the agent cited health reasons for the cancellation but declined to give more details. The tour would have marked a comeback to stage by Hill who has kept a low public profile in recent years. She was the planned headline act for The Stockholm Jazz Festival, one of Sweden’s biggest music events.