I also was born and raised in Miami and Gloria Estefan and The Miami Sound Machine was a very present figure to anyone living there during the late 70s and witnessing their global success in the 1980s, 90s, etc. We saw this one time hometown persona: Gloria Estefan, become one of many pop icons and her and The Miami Sound Machine having these hits through the years. It was unexpected, really.
Now, after saying all that, I also didn't think the musical would last more than a few months. When it was first announced, I cringed. I thought to myself, here is another musical group going after the MAMMA MIA! brass ring. We had LENNON, GOOD VIBRATIONS, RING OF FIRE that all tried and with a great catalogue of hits as well. The Estefan's life story? Really?
Anyway, I did see the show and as I expected, it was candy coated to save its life. It was the story the Estefans wanted to tell. They definitely allowed LOTS of liberty in its inaccuracies that made anyone who knew their true story, quite dizzying. Just the simple fact that ON YOUR FEET! has Gloria sporting long curly hair throughout the entire musical shows you how Gloria presented her character the way SHE wanted. A simple Google search you will see she sported short haircut up until the mid-80s.
Also, her sister was NEVER part of the group. The Miami Sound Machine began with 2 girl singers, Gloria being one of them and her cousin the other. In true DREAMGIRLS fashion, her cousin (along with her husband) was let go from the band to focus on Gloria as the sole singer of the band. None of this is told nor mentioned in ON YOUR FEET!
I could go on but you get the picture. An unauthorized ON YOUR FEET! would have made one amazing musical. The famous bus accident being just one of the MANY dramatic plot points - not the ONLY one.
The ORIGINAL Miami Sound Machine (yes, that's Gloria with the boy haircut - no long curly hair, folks!):



