Joining a growing number of public figures, the American singer, ex-girlfriend of both Simon Cowell and Hollywood star Brad Pitt, and sometime X-Factor judge is the latest celebrity to film a video for the Out4Marriage.org campaign, which calls for global equal marriage for gay couples.

In her video, Sinitta, who is best known for hits such as ‘So Macho’, ‘Toy Boy’ and ‘Right Back Where We Started’, as well as her appearances in West End shows and the X-Factor, said: “I believe in love and I also believe in marriage. I’ve been married and I hope one day to marry again. Most of all I believe in all people being able to celebrate their love in marriage; gay people, straight people, black people, white people – all people. That’s why I’m Out4Marriage, are you?”

Modelled on the It Gets Better Project, Out4Marriage allows politicians, celebrities, religious leaders and members of the public to record YouTube videos explaining why they support changing the law to allow gay couples to marry.

Sinitta joins other high profile figures that have come Out4Marriage including Sir Richard Branson, the Virgin founder; The Saturdays girl groupTheresa May, the Home Secretary; Jack Straw, the former Foreign Secretary; David Walliams, the  Britain’s Got Talent judge; Yvette Cooper, the shadow Home Secretary; Caroline Lucas, the leader of the Green party; Lynne Featherstone, the Lib Dem Equalities Minister; Peter Tatchell, the  gay rights campaigner; Lord (Chris) Smith), the Advertising Standards Authority chairman and Rabbi Ariel Friedlander.