I LOVE Ana Tijoux and her music and have for a long time.
I also love to use "1977" to quickly teach students some numbers (just have students sing "mil novecientos setenta" many times and they won't stumble as much on some of those big numbers!)
Well, she is (finally back) with this amazing song and video:
The lyrics are so positive and joyful! I hope to use it soon, so I created a few activities to use with the video and song. You can see them here (for free).