"Sitting on Top of the World" is a song by Australian pop singer and songwriter Delta Goodrem. It was sent to Australian contemporary hit radio on 5 April 2012. "Sitting on Top of the World" was released physically and digitally on 13 April 2012. "Sitting on Top of the World" marked the return to multi-platinum certified singles for Delta Goodrem since 2003's "Predictable".
The release of "Sitting on Top of the World" was much anticipated. This was mostly due to the four years since Goodrem's last solo single, "I Can't Break It to My Heart" (2008). "Sitting on Top of the World" is about Goodrem's "Feeling like herself" again and feeling connected to the world through music/friendship.
"Sitting on Top of the World" was written by Goodrem and co-written and produced by John Shanks. Lyrically, it talks about stars aligning and being together as one. "So get up, stand up/ What you waiting for?" she happily commands. "We gotta live life, give in to begin/We've got a love like no one knows!" she sings on the power pop track.
Brad Stern wrote for an MTV Buzzworthy article that the song is "a swoon-filled, carefree pop ditty." In another review, Stern wrote for MuuMuse that "probably the most fun, feel good, warm 'n' fuzzy on the inside bout of euphoria you'll feel since that last time you were tripping out on MDMA." He also praised her "sublime vocals", the "powerhouse instrumentation" and called it "an absolutely massive smash." In Australia the single debuted and peaked at #2 on the ARIA Charts, being held off the top spot by Carly Rae Jepsen's "Call Me Maybe". It has sold over 140,000 copies and is certified 2x Platinum. In New Zealand it debuted at #38 and moved to #23 in its second week.
The official music video for "Sitting on Top of the World" was released on 6 April on Vevo. It is set in various places in Melbourne, Australia. It is mostly a continuation on the ideas Goodrem used in the "A Little Too Late", "In This Life" and "Out of the Blue" music videos of her posing and dancing with her friends and playing her piano in a fun way and otherwise dancing in a hippie style. Delta herself has stated in the behind-the-scenes parts on YouTube that it's about how you may get distracted from your main focus in life, but you will always end up where you belong in the end. About "seeing signs, wanting to be in the right place at the right time". The balloons symbolize various paths she has taken over her own life and listeners have taken in their own lives.
The video for the song features Goodrem and a lot of dancers twirling around in a giant field like fanciful forest creatures while holding balloons. At one point, she plays a piano while standing in black stilettos and wearing a bedazzled leather jacket. Brad Stern from MTV News wrote that the video "is equally amazing, featuring Goodrem and a troupe of happy-go-lucky ladies and gents dancing around with balloons in hands."
Goodrem performed the track for the first time during the Logie Awards of 2012 on April 15, 2012, pushing the single to number 4 on the iTunes chart. The singer made several instore appearances to promote the single in Melbourne, Newcastle, Sydney and Queensland. She performed the song on the Today Show on Channel 9 and then performed the single and her hit single In This Life before kick off at the first round of the State of Origin game.