Grace is from Brisbane and attended All Hallows' School and Our Lady of Lourdes Catholic Primary School, Sunnybank. She grew up listening to musical artists such as Smokey Robinson, Janis Joplin, Shirley Bassey, and Amy Winehouse. Grace comes from a family of musicians. Her grandparents toured with the Bee Gees. Her brother Conrad Sewell is also a singer, best known for featuring on Kygo's song "Firestone" and for his solo hit "Start Again". When "Start Again" hit number one on the ARIA Charts in June 2015, Conrad and Grace became the first Australian born siblings in the history of the charts to hit number one as separate acts.
Career
2015-2018: ''Memo'' and ''FMA''
She performed for Dropout Live UK, singing a cover of "Do It like a Dude" by Jessie J. Grace signed with Regime Music Societe and RCA Records in 2015 and began recording in Atlanta with Puff Daddy and Quincy Jones. Grace released "You Don't Own Me" in March 2015 as a tribute to and cover of the original singer, Lesley Gore, who had recently died. Grace recorded the song with rapper G-Eazy, with Quincy Jones returning to co-produce the track. It was her first single with RCA Records. The song became a top 10 viral track on Spotify in April 2015, and debuted at number 14 on the ARIA Singles Chart in May 2015, later peaking at number 1. She released her debut EP Memo in May 2016. In July 2015, she was picked as Elvis Duran's Artist of the Month and was featured on NBC's Today show hosted by Kathie Lee Gifford and Hoda Kotb and broadcast nationally where she performed live her single "You Don't Own Me". The song was used to promote the Australian TV seriesLove Child, and was used in Christmas advertisements for House of Fraser in the UK. In 2016, the song was used in the trailer for the film Suicide Squad. She also was shown performing the song on a season 3 episode of . "You Don't Own Me" was included on Grace's debut studio album, FMA, which stands for Forgive My Attitude, was released on 1 July 2016. Grace also co-wrote a track for the album with Fraser T Smith, which features additional writing and production contributions from Parker Ighile, Diane Warren, and Quincy Jones. In September, she released the official single version of "Boyfriend Jeans" which had been included as a demo version on her debut EP, Memo. Grace was the featured artist on Live from Daryl's House on 16 June 2016.
2019-present: ''The Defining Moments of SayGrace''
In October 2019, Grace rebranded herself to SayGrace and released the single "Boys Ain't Shit". On 22 November 2019, she released the single "Doin' Too Much" and confirmed to Billboard the name of her new EP, The Defining Moments of SayGrace: Girlhood, Fuckboys & Situationships, which was released on 7 February 2020.