Amethyst Amelia Kelly (born 7 June 1990), known professionally as Iggy Azalea ( ə-ZAY-lee-ə), is an Australian rapper, songwriter, and model. Born in Sydney, Australia, Azalea moved to the United States at the age of 16 in order to pursue a career in music. Azalea earned public recognition after releasing the music videos for her songs "Pussy" and "Two Times" on YouTube. Shortly after releasing those two songs, she released her debut mixtape, Ignorant Art (2011), and subsequently signed a recording contract with American rapper T.I.'s Grand Hustle label.

Azalea's debut studio album, The New Classic (2014), peaked among the top five on several charts worldwide and eventually topped the Billboard Top R&B/Hip-Hop Albums, making Azalea the first non-American female rapper to reach the top of the chart. The New Classic was preceded by Azalea's debut single "Work" and chart-topping single "Fancy" (featuring Charli XCX), which hit the U.S. Billboard Hot 100 and received a nomination for the Grammy Award for Record of the Year. Azalea was featured on Ariana Grande's 2014 single "Problem", which peaked at number two behind "Fancy". With these hits, Azalea became the second musical act (aside from the Beatles) to rank at number one and number two simultaneously on the Hot 100 with their debut releases on the chart. In addition, she achieved three top ten hits simultaneously on the Hot 100 with the aforementioned songs and the album's fifth single, "Black Widow" (featuring Rita Ora), which debuted later that year.

After her debut album, Azalea released a slew of singles to build anticipation for her intended second album, Digital Distortion. However, a series of conflicts with her label, as well as personal conflicts, resulted in the project being cancelled. Consequently, Azalea switched labels, releasing the EP Survive the Summer (2018) under Island Records. Further disagreements led to Azalea becoming an independent artist and creating her own label, Bad Dreams, through a distribution deal with Empire. Her second album, In My Defense, was released in 2019, followed by another EP, Wicked Lips, that same year, and a third studio album, The End of an Era, in 2021. In 2024, Azalea seemingly announced her retirement from music as posted on her social media and reported on by Billboard.

Azalea's accolades include two American Music Awards, three Billboard Music Awards, an MTV Video Music Award, a People's Choice Award, and four Teen Choice Awards, in addition to nominations for four Grammy Awards. Her YouTube channel has accumulated 3.4 billion views, and 15 of her music videos have received over 100 million views on Vevo.