Her management wanted her to go to "Rehab", so she fired them & sang about it on "Back to  Black"
Her father Mitch remembers that 
when she was a child, Amy .... pictured performing with the Back To Black singer 
at the Brit Awards in 2008 ... who soon quit as her manager, wanted her to go to 
rehab and she sang to ...... An astonishing 35 years between them.