"Brother" is the first single released from Australian indie rock

Indie rock

Indie rock is a genre of alternative rock that originated in the United Kingdom and the United States in the 1980s. Indie rock is extremely diverse, with sub-genres that include lo-fi, post-rock, math rock, indie pop, dream pop, noise rock, space rock, sadcore, riot grrrl and emo, among others...

 band Little Birdy

Little Birdy

Little Birdy are an Australian indie rock band formed in Perth, Western Australia in 2002 by singer and guitarist Katy Steele, drummer Matt Chequer, guitarist and keyboardist Simon Leach, and bass guitarist Scott O'Donoghue...

's third studio album, Confetti

Confetti (Little Birdy album)

Confetti is the third studio album by Australian indie rock band Little Birdy, released on 8 May 2009. It debuted at number 6 on the ARIA album charts.-Background:...

. The song reached number 90 on the Australian ARIA

ARIA Charts

The ARIA charts are the main Australian music sales charts, issued weekly by the Australian Recording Industry Association. The charts are a record of the highest selling singles and albums in various genres in Australia. ARIA commenced compiling its own charts in-house from the week ending 26 June...

 charts, and number 34 on the Triple J Hottest 100 of 2009

Triple J Hottest 100, 2009

The 2009 Triple J Hottest 100 was announced on Australia Day 26 January 2010. It is the seventeenth countdown of the most popular songs of the year, as chosen by the listeners of Australian radio station Triple J....

. Originally offered as a free download, the song is also the fifth track on the "Summarize" single.

Background

The song is written by singer and guitarist Katy Steele

Katy Steele

Katy Steele is the vocalist, guitarist and songwriter of four piece rock band Little Birdy.-Biography:Katy Steele was born Kate Elizabeth Steele in Perth, Western Australia on 9 September 1983, and has a fraternal twin brother, Jake. She and her brother are the youngest in the family...

 and features Paul Kelly

Paul Kelly (musician)

Paul Maurice Kelly is an Australian rock music singer-songwriter, guitarist, and harmonica player. He has performed solo, and has led numerous groups, including the Dots, the Coloured Girls, and the Messengers. He has worked with other artists and groups, including associated projects Professor...

 on backing vocals and harmonica

Harmonica

The harmonica, also called harp, French harp, blues harp, and mouth organ, is a free reed wind instrument used primarily in blues and American folk music, jazz, country, and rock and roll. It is played by blowing air into it or drawing air out by placing lips over individual holes or multiple holes...

, but for live performances and in the music video for the song, bassist Scott ('Barney') O'Donoghue plays the harmonica.
The song, according to Matt Chequer, was a last minute addition to the album while the band recorded at Melbourne's Sing Sing Studios.