In 2013, for instance, a group of men murdered two teen-age girls and their mother after a video was posted online that showed the pair dancing in the rain. Such acts of extreme physical violence are more prevalent in Pakistan’s rural, conservative regions, but even in Karachi, a relatively progressive city, they are not unknown: in April, a man cut his sister’s throat in public after he saw her speaking on a mobile phone.
That's the Pakistani conservative-progressive spectrum. The cons kill girls for dancing in the rain and the progs almost behead girls for talking on the phone.
Here is an enlightening video of Dr. Zakir Naik who explains to us the prohibition of music and dancing in Islam.