The Kiss From A Rose hitmaker filed his papers at Los Angeles Superior Court on Tuesday in response to Heidi's divorce petition last week. Heidi is seeking joint legal custody with visitation rights for Seal to the couple's kids, but sources close to the pair say this is merely a technicality and there is no custody fight expected.
Seal, 49, and Heidi, 38, both cited "irreconcilable differences" for the end of their almost seven-year union.
'Grown apart'
Following the announcement of the couple's separation, Seal revealed the pair had "grown apart" and he insisted he still loves the Project Runway star.
He explained: "You just grow apart after a while. She still, in my opinion, the most wonderful woman in the world. I think our priority was to remain civil and do this thing with dignity. We still very much love each other.
"To say that neither of us were grieving would be an out and out lie, and I don't mind telling you that. I think the operative here is that we are civil to each other and we both have a tremendous amount of respect and love and we try and do this with as much dignity as we possibly can."