Conor McGregor comes out in support of controversial rapper Azealia Banks

Over the last five years, Banks was criticised repeatedly for her online rants and conflict with other artists including Lily Allen and Zayn Malik.
When stories began to emerge of Banks' violent behaviour offline, her bad press began to overshadow her music career.
As a result, she was dropped from several major festival line ups and record labels.
In 2016 the rapper began to discuss her mental health issues openly after receiving criticism for her endorsement of Donald Trump and bleaching her skin.
She took a brief hiatus following an alledged physical assault by Russell Crowe in October 2016 and a miscarriage the following month.

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However in 2017 she has managed to turn things around, something she has posted frequently about on her instagram account.
This year, Banks attained something of a cult following, returned to touring after a long hiatus and ventured into film and business endeavours.
Yesterday she posted this supportive fan message she received on her instagram account,

Not gonna lie , I gagged a bit too.

A post shared by Azealia Banks (@azealiabanks) on Jan 1, 2018 at 6:36pm PST

In the comments section, Conor Mcgregor commented that her 'rise from the ashes' has been her 'payback' to those who criticised her.
McGregor presumably can relate to the accusations of racism and homophobia which have tarnished his reputation as well.