Go to the ویڈیوز Tab on your پروفائل یا on the Fanclub that آپ joined یا wanted to contribute to. Now scan toward the corner of the tab and آپ will see something that looks like "+ Add Video". Click on that and add the ایل آر یو and all other information that is asked for and آپ are set to go.
Tips:
1. There are many sites that have videos. YouTube, Dailymotion, etc. Just find the one that has the video آپ want.