Heidi Klum and Seal

Is it over between Heidi Klum and Seal?

Check out photos of Heidi Klum

The supermodel and Project Runway host is set to file for divorce from her husband of six and a half years next week, TMZ reports. According to the site, Klum will cite "irreconcilable differences."

The couple, who are known for their vow renewal ceremonies every year, have four children: sons Henry, 6, and Johan, 5, and daughters Leni, 7, and Lou, 2. Leni, whom Seal adopted in 2009, is Klum's daughter with Flavio Briatore.

Check out photos of Seal

Klum, 38, and Seal, 48, met in 2003 while she was pregnant with Leni. The Grammy winner proposed on a glacier in Whistler, British Columbia, Canada, in December 2004, and they wed five months later in Mexico.