Mancunian comic Rachel Fairburn is one of the loveliest people I’ve ever interviewed – I’ve had the pleasure twice now – so it came as a bit of a shock to see her dressed as the devil in her latest promo shots. The costume ties in with Rachel’s first foray into character comedy with her new show, Side-Eye, which she will be premiering at the Edinburgh Fringe in August, along with a ‘victory lap’ of her acclaimed 40-date Showgirl tour from last year. Before then, however, the comedian and podcast host (she co-hosts the smash hit podcast All Killa No Filla alongside Kiri Pritchard-McLean) will a…