What is steemjetmusic all about?

I saw one of the steemian here posting about steemjitmusic contest . I just want to know about it more, would it be needed to post the original or composed song ? Or it would be okay also if you sing cover song for competition?

I would love to join if i already have any ideao of it. Please drop your comments below, i would really appreciate it. Thank you by the way :)