Alejandra Ghersi, better known by her stage name Arca, is a Venezuelan artist, producer, and vocalist.

She rose to prominence in 2013 after her work on Kanye West’s Yeezus, and has gone on to produce for a range of artists including Mykki Blanco, FKA twigs, and Kelela. Arca is possibly best known for co-producing Björk’s albums Vulnicura (2015) and Utopia (2017). She has released several studio albums of her own, all of which have received critical acclaim.

Arca has collaborated with many artists over the years, namely with Shayne Oliver. Together, they formed the group Wench, and have also worked under the names HBA and 88 mmuussiicc.
​doon kanda has also provided artwork for a majority of Arca’s releases. Along with one remix from Arca, the two recorded as fantasy bags in 2009. In 2020, she formed LAS HIJAS DEL DESTINO with Carlota Guerrero and Daikyri.

Before debuting the Arca project in 2011, Alejandra first released music as Nuuro from 2005 to 2011.