Eyre's musical influences include Lauryn Hill, Etta James, Basement Jaxx and Hans Zimmer.

Her father was a chef who lived in Jamaica and was unable to move to the UK with the rest of his family due to limited economics[2] and her mother, who raised Eyre in London, is a cake designer.

She signed to the publisher Warner Chappell Music in July 2012 and a record deal with Virgin EMI followed shortly after.

In August 2013, she appeared alongside rapper Wiz Khalifa on the track "Think About It" from producer Naughty Boy's 2013 album Hotel Cabana.

[10] She co-wrote the UK number one single "Changing" for drum and bass duo Sigma featuring British recording artist Paloma Faith, which was released in the United Kingdom in September 2014.

[12] Also during mid 2015, Eyre supported Olly Murs on his 2015 arena tour and was announced as the "face" of the advertising campaign for an Emporio Armani Diamonds fragrance.

[13][14] Her debut album, Feline, was released in August 2015 (following the single "Good Times") and features contributions from Wayne Hector, Ilya, Paul O'Duffy and Jarrad Rogers.

[20] At the comeback concert at KOKO, Eyre performed four new songs: "LOV(E)", "Drink with Your Name on It", "I Swear" and "Ego".

On 7 September 2018, Eyre released another collaboration with Sigala called "Just Got Paid" featuring Meghan Trainor and French Montana.

[26] In February 2017, Eyre and Lewi Morgan, from the British pop rock band Rixton, ended their two-year relationship.

[28] Eyre revealed she suffered from a kidney infection and severe shellfish allergy during the making of her 'New Me' music video, which resulted in facial swelling and secretion.