The 21st Annual Australian Recording Industry Association Music Awards (generally known as ARIA Music Awards or simply The ARIAs) were held on 28 October 2007 at the Acer Arena at the Sydney Olympic Park complex.Rove McManus was the host of the event. The nominees for all categories were announced on 19 September, while the winners of the Artisan Awards were announced on that same day.

All nominees are shown in plain, with winners shown in bold.

The Artisan Award winners were announced on 19 September.The winners are shown in bold, other nominees are in plain.

The following were inducted into the 2007 ARIA Hall of Fame on 18 July:

Added to these inductees on 28 October, was:

Instead of a traditional acceptance speech, Cave noted that he didn't understand why he was inducted and the Bad Seeds weren't. Due to the membership of Tomas Wylder (Switzerland), Jim Sclavunos (USA), and James Johnston (UK), the band does not qualify as Australian. In rebellion against this ruling, Cave unofficially inducted Mick Harvey, Warren Ellis, Conway Savage and Martyn P. Casey of the Bad Seeds; as well as Rowland S. Howard and Tracy Pew of the Birthday Party; "by the power vested in [him] by this award". Cave did not name Hugo Race of the Bad Seeds nor Phill Calvert of The Birthday Party, who are Australian, in his unofficial induction. He did, however, close by thanking his mother, wife and sons.

The Australian Recording Industry Association Music Awards (commonly known as ARIA Music Awards or ARIA Awards) is an annual series of awards nights celebrating the Australian music industry, put on by the Australian Recording Industry Association (ARIA). The event has been held annually since 1987 and encompasses the general genre-specific and popular awards (these are what is usually being referred to as "the ARIA awards") as well as Fine Arts Awards and Artisan Awards (held separately from 2004), Lifetime Achievement Awards and ARIA Hall of Fame (held separately from 2005). For 2010, ARIA introduced public voted awards for the first time.

Winning, or even being nominated for, an ARIA award results in a lot of media attention on an artist, and usually increases recording sales several-fold (for example, in 2005, after Ben Lee won three awards, his album Awake Is the New Sleep jumped from #31 to #5 in the ARIA Charts, its highest position).

In 1983, the Australian Recording Industry Association (ARIA) was established by the six major record companies operating in Australia, EMI, Festival Records, CBS (now known as Sony Music), RCA (now known as BMG), WEA (now known as Warner Music) and Polygram (now known as Universal). It later included smaller record companies representing independent acts/labels and has over 100 members.

Candice Marie Giannarelli, better known as Candice Alley (born 23 June 1982 in Melbourne, Victoria, Australia) is an Australian singer-songwriter of Australian/Italian descent. She married Australian swimming captain Grant Hackett on 14 April 2007.

Alley grew up listening to the music of artists like Bob Dylan, Fleetwood Mac and The Rolling Stones. At the age of sixteen, she wrote her debut single, "Falling", which only took her twenty minutes to write. She started to shop her demos around the various independent labels in her home town of Melbourne and one of her tapes found its way onto the desk of Universal Music's former Chairman, Peter Bond. He liked what he heard and flew down from Sydney to catch Alley at a showcase. She was signed to the label at the age of eighteen.

In February 2003, Alley then went to write and record in London with songwriters and producers John Holiday, Trevor Steele and Peter Vettese. On 26 May 2003, she released her first single "Falling" which went to peak at number five on the Australian ARIA Singles Chart and was nominated for an award at the 2003 ARIA Awards for "Breakthrough Artist - Single" but lost to "Born to Try" by Delta Goodrem. Her first studio album Colorblind was released on 23 October 2003, and debuted in the ARIA Album Chart at position sixty-four. The second single "Dream the Day Away" did not follow the success of "Falling", only debuting at number forty-five. On 2 October 2003 Alley opened the seventeenth annual ARIA Awards performing the song "Falling". In 2004 she split with her record label Universal Records because she was not happy with the lack of control she had.

Melissa "Missy" Morrison Higgins (born 19 August 1983) is an Australian pop singer-songwriter, musician and actress. Her No. 1 albums in Australia are The Sound of White (2004) and On a Clear Night (2007), and her Top Ten singles are "Scar", "The Special Two", "Steer" and "Where I Stood". From a musical family in Melbourne, she played piano by age six and sang at twelve. While boarding at Geelong Grammar School, she wrote a song for an assignment which was then entered into the national Unearthed radio competition for unsigned artists. Higgins won and signed recording contracts with Eleven and Warner Bros. After taking time off, backpacking in Europe, she recorded her first album The Sound of White, which was released in 2004. The album, and its first single, "Scar" both went to No. 1 on the relevant Australian Recording Industry Association (ARIA) Charts. Its second single, "The Special Two", went to No. 2. Higgins was nominated for five ARIA Music Awards that year and won 'Best Pop Release' for "Scar". In 2005 she was nominated for seven more awards and won five. She won her seventh ARIA in 2007.

The Veronicas are a rock band from Brisbane, Australia, formed in 1999 by twin sisters, Jessica and Lisa Origliasso. In addition to music, the sisters market their own line of clothing which debuted in 2007.

In 2005, The Veronicas released their first studio album entitled The Secret Life of... which peaked at #2 on the Australian charts and gained an Australian ARIA certification of 4x platinum for 280,000+ sales. In total, the album spawned five singles, three of which were top ten singles in Australia.

In 2007, the duo released their second studio album, Hook Me Up, which also peaked at #2 on the Australian charts and earned an Australian ARIA certification of 2x platinum for 140,000+ sales. To date, the album has garnered four Australian top ten singles. The album's title track, "Hook Me Up", was The Veronicas' first #1 single in Australia.

In 2004, Lisa Origliasso and Jessica Origliasso were introduced to the Music Director of The Bell Hughes Music Group (BHMG), Hayden Bell. After producing some demo recordings with the twins, Bell invited them to sign a publishing agreement with Excalibur Productions (a subsidiary of BHMG). In the process, Bell helped facilitate their progression in musical style from acoustic pop to the more rhythmic rock pop approach that is now their trademark. On the strength of these demos, Bell took them to meet the executives at Engine Room (a subsidiary of PBL (Packer) Group) and they were immediately signed to a production deal. To further develop their song writing skills, Bell connected them with several internationally acclaimed songwriters and producers including Clif Magness (who has written with Avril Lavigne), Billy Steinberg (Madonna, Cyndi Lauper), Max Martin (Britney Spears, Katy Perry, P!nk), Eric Nova, Dead Mono and Vince DeGiorgio, where they created a catalogue of over 50 songs.