The 28-year-old singer went back to the studio to record music when Ethel was just seven months old, admitting: ‘I was still breastfeeding and I had the breast pump in the studio.’
She added: ‘The noise! My producers were horrified but, being the “hardcore feminist” I am, I insisted on sitting with these things, being like: “If you don’t like it, get out!”
The star is currently in Utah, USA, where she has been posting sunny snaps from the desert to her Instagram page.
Allen's third studio album Sheezus, it due for realease in early May. The star will also perform at Glastonbury 2014.
Read: This incredible woman's rap to bullies who attacked her for breastfeeding.