Celeste Rizvana Buckingham (born 3 May 1995) is a Slovak singer and songwriter. Buckingham began her career in 2011, after finishing fifth in the second season of Česko Slovenská SuperStar, the joint Czech-Slovak version of Idol.

Born in Switzerland to an American father and Iranian mother, Buckingham settled with her family in Slovakia at the age of three. After beginning her professional career with Česko Slovenská SuperStar, Buckingham released the singles "Blue Guitar" and "Nobody Knows", both of which became top ten radio hits in Slovakia. The singles were followed by the release of her debut studio album Don't Look Back (2012). While a moderate commercial success, the album spawned the release of the single "Run Run Run", becoming a number-one radio hit in both Slovakia and the Czech Republic, and the most-played song of the year by a Slovak artist. Buckingham has since gone on to release four additional studio albums as an independent artist: Where I Belong (2013), So Far So Good (2015), BARE (2017), and Life (2022).

In addition to music, Buckingham has additionally worked as a model and television host, and was a judge on X Factor Česko a Slovensko, the Czech-Slovak version of The X Factor, in 2014. In 2007, she authored and released the children's picture book The Lost Princess (2007), cowritten by her younger sister Carmel.

Buckingham was born on 3 May 1995 in Zürich to a culturally diverse family.^{[2][3][4][5][6]} Her father, Thomas (born 1954), is an American from Chicago with British-Irish origins, while her mother, Zarin (born 1961), is Iranian with Russian heritage.^[7][8][3][9] Shortly after Buckingham's birth, the family relocated to Anchorage, Alaska in the United States, where her father worked as a cardiologist.^[3][10][7] Buckingham is the elder of two sisters: her younger sister is Carmel (born 1998).^[1][7]

In 1999, the family left Alaska and relocated to Slovakia, after Buckingham's father was offered a job there.^[8][11] After arriving in Slovakia, they settled in the village of Borinka, outside of Bratislava.^[7][8][10] Despite initially planning to only spend a year in Slovakia, they ultimately remained there indefinitely.^[1] Upon beginning school in Slovakia, Buckingham could not speak the Slovak language and was teased by her peers for this inability, although she soon became fluent.^[1] Buckingham was later educated at Forel International School, an international school in Bratislava, founded by her mother.^[10][11][12] In 2012, she began studying music at Belmont University in Nashville, Tennessee.^[13]

Buckingham developed an interest in music at a young age, and began taking lessons in classical ballet and Latin dance, while learning to play the piano and guitar.^[9][7] In 2007, she and her sister coauthored the children's picture book The Lost Princess, released by Divis-Slovakia.^[14]

• 2007, The Lost Princess with Carmel Buckingham (illustrated by Georgina Soar)

• Don't Look Back (2012)
• Where I Belong (2013)
• So Far So Good (2015)
• BARE (2017)
• Life (2022)