Singer Rihanna had to cancel her show midway after food was thrown at her during a live performance. The 25-year-old was performing at M.E.N Arena in Manchester when the audience started throwing snacks at her, reports contactmusic.com.The singer lost her cool after some time."This is next level, there is a good crazy and there is a bad crazy, but when you throw s**t up here, that's an epic fail. I swear to god, cut that s**t out," Rihanna said to the audience."Really? Chips? Chips, though - it's that important? Ok Manchester, for those of you who want to (get) jiggy and have a good f**king time, say my name," she added.The singer is currently on her Diamonds world tour.