The six Iranian singers who were arrested for appearing in a viral video dancing to Pharrell Williams song Happy have been sentenced to six months in prison and 91 lashes. The group became famous in May when their music video for the hit song circulated on YouTube, racking up more than 150,000 views before attracting the attention of Iranian authorities. It featured three men and three unveiled women singing and dancing along to the four minute song in the street and rooftops of Tehran, mimicking the style of Pharrells official video. Authorities arrested the group for contravening Irans strict vulgarity laws, which prohibit public displays of dancing, and paraded the six on state television, forcing them to express remorse for their behaviour.