For your music yes. It needs to be uploaded to Twitter (X) and link shared here in post. We prefer you upload the video to Twitter directly. Only if it is longer than 2 minutes 20 seconds would something else be ok if you dont own a blue checkmark.
To share it on X you just copy the link into the tweet.
You can even win something simply for voting for others in the Dpoll poll we will have ready 5 days into the first week.