At the age of 15, Goodrem signed a record deal with Sony Music Australia. Her first album, Innocent Eyes, was one of the highest-selling debut albums in Australian history. The album spent a record-breaking 29 weeks at #1 in Australia. It topped the Australian Albums Charts and reached 23x platinum in sales. Delta became the first-ever artist to have five #1 singles on the Australian charts from a debut album and was awarded the ARIA Albums Artist of the Decade in 2010 having sold more albums and singles than any other domestic or international artist over the decade. The album won the Highest Selling Album award at the ARIAs two years running, heralded a record seven awards for a female artist in one ARIA year.

Since then, Delta has achieved 17 Top-10 hits, five #1 albums, and over 9 million records sold worldwide and started her own label imprint with Sony Australia, The House of Oz Records. Her latest album Wings of the Wild debuted at #1 with the platinum hit song "Wings", the singer's 9th #1 single. The album's accompanying sold out arena tour broke records as Delta became the highest-selling female Australian touring artist in 2016 and the tour's live concert DVD earned a #1 on the ARIA Charts.

As an accomplished songwriter, Delta has written and performed songs for Olivia Newton-John, Celine Dion, Tony Bennett, Michael Bolton, LeAnn Rimes and Westlife. Delta also toured with Michael Bolton across the US, joined good friend and renowned maestro tenor Andrea Bocelli on legs of Bocelli's Asian, American and Australian world tours, and toured with Ricky Martin as part of his 2015 Australian tour.

With a television resume that started at the age of seven, appearing in regular primetime shows, Hey Dad, A Country Practice and Police Rescue, at the age of 16, Delta joined the cast of Neighbours that later earned her a Logie Award for Most Popular New Talent and the lead role in 2005's movie Hating Alison Ashley. For 9 years Delta was a Coach and anchor of the number one rated, multiple Logie Award winning TV show The Voice Australia. Goodrem mentored her artists to victory, as the winning coach for the 2016 & 2017 seasons of The Voice and was the winning coach on the first ever English- speaking version of The Voice Kids.  Delta also returned to Australian TV with a special guest role in Nine Network's, House Husbands. In 2018, Delta starred in the lead role of her mentor, idol, and good friend, Olivia Newton-John in the superstar's biopic, Hopelessly Devoted To You that has been released around the world and was featured on Lifetime TV channel is the US and Latin America.

In 2015 & 2016, Goodrem played to critical acclaim in the role of Grizabella in Andrew Lloyd Webber's iconic musical CATS, performing a breathtaking rendition of the powerful ballad "Memory" and bringing legions of her multi-generational fans to experience the joys of musical theatre.

In 2017, Goodrem launched her debut fragrance Delta by Delta Goodrem, smashing records as it debuted as the highest selling fragrance in Australian history. In 2018 she released her second fragrance of her collection "Dream" and in November 2019 released her third fragrance “Destiny”.

While 2020 saw the world go through unprecedented times, for Delta Goodrem was a year that has saw her release incredibly powerful pieces of music and connect with fans like only she can do.

In January 2020, Delta was inspired to write 'Let It Rain' after seeing the devastation from the bushfires across Australia. She teamed up with Apple Music, Sony Music, and iHeart radio in Australia & the US for the release, with all proceeds going to aid with Red Cross bushfire relief. In February, she took to the stage in front of 70,000 fans at ANZ Stadium as part of the Fire Fight Australia concert which was broadcast nationally. Her incredibly moving performance of 'Let It Rain' was included on the album release of songs from the day, Artists Unite For Fire Fight: Concert For National Bushfire Relief.

In April 2020, Global Citizen together with Lady Gaga reached out and invited Goodrem to perform as part of the online One World: Together At Home festival in support of the COVID-19 Solidarity Response Fund for the World Health Organization. Delta was the only artist performing in Australia, with the event capturing over 270 million viewers who had tuned in around the world.

Keen to connect with her fans from all over the world, Delta launched The Bunkerdown Sessions via her social media beginning of April 2020. Performing live deep cuts from her extensive catalogue, debuting new songs she had recently written, and performing favorite covers, on the seventh week Delta surprised and delighted fans by performing and releasing new music from her upcoming 6th studio album.

Delta launched the Delta Goodrem Foundation in June 2020, which strives to spread kindness, hope and support for those facing illness, hardship and inequality. With a lead collaboration with St Vincent's Hospital in Sydney, to help fund medical research in cellular therapy for blood cancers and auto-immune diseases.

In November Delta released her #1 holiday album Only Santa Knows, which was complimented by the Nine network TV special Christmas with Delta that was produced in conjunction with Delta's production company Atled Productions. Delta performed alongside guests Kylie Minogue, Robbie Williams, Olivia Newton-John, Pentatonix, Morgan Evans, Hugh Sheridan, Sheppard, and Montaigne.

In May 2021, Delta released her 6th studio album, Bridge Over Troubled Dreams and her first book of the same title, published by Simon & Schuster - both her album and book heralded a #1 chart position.

Delta has announced her Bridge Over Troubled Dreams headlining arena tour throughout Australia and New Zealand in March and April 2022. $1+ GST from every ticket purchased for the tour is being donated to the Delta Goodrem Foundation. Tickets on sale now.