No specific educational background or formal training is required to be a VJ, except some personal attributes. However a background in mass communication, visual communication or the performing arts comes in handy. 

An interest and love for music is an essential aspect. Along with that, excellent body language and dress sense, a pleasant voice, good command over the required language depending on the medium, presence of mind and a good knowledge of music anyone can aspire to be a VJ. One has to get to know about the various styles of music, musicians and albums. With the changing trends one also needs to be well informed generally on topics like politics, travel and what is new. 

Command over language is important as video jockey needs to talk a lot. Some amount of voice training would definitely help as VJs need a voice that's clear, pleasant and strong. He should be able to take split second decisions, answer promptly, be energetic and have a wonderful sense of humour to make the show interesting. He may also need to work erratic hours and travel extensively.