I suppose singing along with a song is basically 'shadowing' to music. Eventually it would be nice to be able to sing along and actually understand what you're singing. I do love this song. I found it on the Lyrics Training app.
They also have a YouTube channel. Jenny is Jenny Ball and she's from Great Britain, but holey cow, she sounds like a native and she plays the trumpet like 'all get out'! The drummer is from Spain and the strings are from Mexico. Their music is described as a mix of rockabilly, cumbia, jazz and flamenco. It makes me want to dance. It's so motivating to want to learn how to sing along!
The Mexicats - YouTube Channel
