American television personality Kim Kardashian has filed for divorce from rapper Kanye West, according to reports in the US media.
The couple have been married for almost seven years and have four children together.
The news was broken by celebrity news website TMZ after months of rumours of marital difficulties.
Reports in US media suggest the reality star, 40, has requested joint legal and physical custody of their children. Neither has publicly commented.
The couple are among the most recognisable stars in the world and are both hugely successful in their own right.
The couple have been contemplating divorce for over a year now, but have been tied together for the sake of their kids, reports said.
They made their relationship public in April 2012.
Last year, West unsuccessfully ran for US president. During his campaign, a series of erratic public appearances and online postings by the rapper sparked concern and led Kardashian to speak out.
Ms Kardashian said her husband had bipolar disorder, was a “brilliant but complicated person” and called for greater empathy surrounding his mental health from the public and the media.
The couple are yet to make an official comment.
Kim first found fame in 2007 as the star of an E! Television reality series about her family. Keeping up with the Kardashians has remained hugely popular since, with its 21st and final series due to air next year.
The reality star has found success in many other areas of business, from mobile apps to make-up, and Forbes estimates her personal wealth to be about USD $780 million.
Known for huge international hits like Gold Digger, Kanye West has been one of the biggest names in rap music for over 15 years. The Grammy-winning musician has also found success as a fashion designer.