In 2018, Alexandra Burke played Roxie Hart in the West End revival of Chicago at the Phoenix Theatre.
Alexandra Burke has been in the shows, Star for a Night (2001), The X Factor (2005; 2008), So You Think You Can Dance (2011), The X Factor (2011), First Dates (2015), Strictly Come Dancing (2017), Loose Women (2018), The Great Celebrity Bake Off For Su2c (2021), and Celebrity SAS: Who Dares Wins (2021).
In 2021, Burke played the Narrator in Joseph and the Amazing Technicolor Dreamcoatat the London Palladium, sharing the role with Linzi Hateley.
Alexandra Burke toured with the production of the West End musical The Bodyguard in 2015, 2016, 2018 and 2019 after she replaced Beverley Knight in the lead role of Rachel Marron at the Adelphi Theatre in June 2014.
Alexandra Burke performed on the Royal Variety Show on 7 December 2009. Alexandra Burke was announced as the first-ever brand ambassador for Sure Women. Alexandra Burke made her U.S. performance debut at Apollo Theater on 10 June 2013.