Video grab from the moment a dog howls along to a nuclear alert siren in Plymouth. See SWNS story SWHOWL; This is the adorable moment talented pooch storm could have booked her place on next year's X Factor - howling along to a nuclear alert siren. The black and white sheepdog sings along to the alarm every Monday morning and her own rendition is pitch perfect. Owner Henry Gilbey has heard his beloved companion break out into song before but never managed to get it on tape. But this week he struck lucky and captured the cute moment on video. But said it cracks him up every time she does it. And Christmas came early for the performing dog when she was given the chance to show off her vocals twice in one week.