Kate is a singer-songwriter and actress. Her 2007 single "Foundations" became a hit and brought her to public attention in the UK. Her debut album, Made of Bricks, peaked at No. 1 in the UK and was an international success. Kate subsequently won the award for Best British Female Artist at the 2008 Brit Awards. Her second studio album, My Best Friend Is You, was released in 2010 and reached the top 10 in the UK and Germany. After her departure from a major label, Nash self-released the albums Girl Talk and the Kickstarter supported Yesterday Was Forever.
Aside from music, Nash has appeared in films such as the drama Greetings from Tim Buckley, the comedy Powder Room, and the comedy-drama Syrup. She played Rhonda "Britannica" Richardson in the Netflix comedy-drama series GLOW. She also stars in the 2023 comedy film Coffee Wars about a vegan coffee shop owner fighting to save her business by competing in the World Barista Championship. Kate was awarded the Rising Star Award at the Maui Film Festival for this role. Kate is a vocal campaigner for feminism, LGBT and non-human animal rights.
Kate is vegan and seems to have a sentiocentric moral scope. She seems to have a broadly naturalistic worldview.