Only Santa Knows

While working on an album of original material through 2019 and 2020 (which was later confirmed as her 2021 seventh studio album Bridge over Troubled Dreams), Only Santa Knows was released on 12 November 2020 with no prior announcement. On Twitter, Goodrem stated: "I hope the music brings you joy and puts us all in good spirits regardless of everything going on around us."^[3]

Following the surprise release of the album, Goodrem explained that the idea for a Christmas album had begun "midway through the year" and that she "went to storage, grabbed all the Christmas decorations, took them to the studio and started getting into the spirit".^[4]

In a review for Only Santa Knows, website Stack referred to Goodrem as a "traditionalist" and opined that "opening on an uber-haunting version of the already spooky Carol of the Bells, it’s immediately clear Delta Goodrem knows what makes the Christmas classics tick".^[5] Thomas Bleach commented "reimagining some Christmas classics through her Delta Goodrem musical lens, she's delivered some very uplifting renditions of "The Little Drummer Boy", "Rudolph the Red-Nosed Reindeer", "White Christmas" and "Santa Claus Is Coming To Town". She even recorded her own version of Joni Mitchell's "River" which over time has become a Christmas cult favourite. But on top of that, she also wrote a brand new Christmas song which embodies the importance of believing during this time of year."^[6]

Only Santa Knows debuted on the ARIA Albums Chart at number five,^[7] the lowest opening week of Goodrem's career. In its fifth charting week, the album rose to number two.

To support the album, Goodrem announced her own Christmas special Christmas with Delta, which aired on Nine Network on 12 December 2020,^[8] to a viewership of 380,000.^[9] She then did a follow-up in 2021 in Luna Park Melbourne 2021.^[10][11] She did her third concert with tribute to Olivia Newton-John in 2022.^[12][13]