We call this animated video with music "Happy Birthday B for Twitter.Vine." It is perfectly sized for a Vine at 480x480 and is exactly 6 seconds in duration. Here it is scaled to about half size. Watch the video then provide your own text as noted below. This is one of our more popular videos we provide for Vine. Someone will be very happy to receive this. Enjoy!
Audio credit Marbury Media: Birthday Greetings Surprise