Born in Kingston upon Thames, England, her father is from New Zealand and is of Jewish descent; and her mother is Scottish and is Christian.

An album, entitled Forget Me Not, was also planned for release but EMI terminated her contract after the poor reception of the single.

Produced by Mike Peden, much of Breathe In was co-written with Judie Tzuke, for whom Silvas sang backing vocals for many years.

Following TV appearances on the Ivor Novello Elton John tribute show, and "All Time Greatest Love Songs" with Ronan Keating, Silvas released her second single from the album, "Breathe In", which debuted at number 6, her highest UK chart peak to date.

The Breathe In album was also re-released in the Netherlands as a special 2-disc edition, featuring a full live concert recorded there.

A special re-recorded version of the song, featuring the Metropole Orchestra, was released as the fourth and final single from the album in the Netherlands.

"Last Year" was the first single from the album in the UK and Ireland, premiering on BBC Radio 2 in late August 2006, though it failed to chart.

In August 2009, Silvas revealed that she was writing with Australian singer Delta Goodrem, and has also co-written tracks for Katharine McPhee's album Unbroken.

Tracks including "Happy", "Reset", "Smoke (Somebody Stop Me)" and "Roots" – the last of which was offered as a free download prior to the album's release through SoundCloud in April 2011.

Her songs, including "Heart Shaped Wreckage", "Pretender", "Don't Let Me Know" and "Calling Out My Name", appear in Hit List, a staged concert based on the fictional musical created for that show's second season.

Silvas co-wrote the song "Smoking Jacket" and provides backing vocals for Miranda Lambert on her 2016 album, The Weight of These Wings.

[10] Osborne announced at the 56th Annual Country Music Association Awards in 2022 that Silvas was pregnant with twins.