Beyonce is the prime example of natural reinvention and growth. Of course ST was a major departure from her previous albums, but it really felt like you were watching a teen grow into a young lady and now a fully grown woman.
She doesn't just slap on new wigs, dye them, and hire new producers and call it "reinvention"
All of her albums are sonically different but there has always been at least one thread that ties them all together.