Yes, Natalia Lafourcade is a serious talent, and I had not heard of her until yesterday, which is the great thing about ThreeTuneTuesday - we can find out about lots of great artists and bands and expand our musical horizons. That was my thinking when I started the initiative and it has grown nicely and most weeks now we get 8 or 9 posters and 30 songs or thereabouts.
The majority of people pick three songs and share a Youtube video of their fav artist singing the three songs and talk a little about the songs, the artist, their connection with the music etc. We have had some people who sing their own songs or covers, but that is more rare, and I would say is around 1% of the posts so far.