Katie Holmes and Jamie Foxx are "really happy" together, his daughter says.

Corinne Foxx opened up to People Now about her father's extremely private relationship with the former "Dawson's Creek" this week, breaking her silence on their reported six-year romance.

SEE ALSO: Jamie Foxx and Katie Holmes pose together for the first time at the Met Gala

"They are so great and Katie is always so chic," Corinne said of the couple while discussing their recent appearance at the 2019 Met Gala together. "They were wonderful. [It was] my dad's first Met Gala. I actually felt cool because I went to the Met Gala before him."

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Katie Holmes and Jamie Foxx together

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Though she clearly felt uncomfortable talking about her father's low-key relationship, she did add that "they're really good, really great."

Katie and Jamie attended the Met Gala together as part of Zac Posen's star-studded group, opting to only pose in group shots together on the event's hectic red carpet, but they did pose for their first-ever photos together inside the event.

Despite their years-long romance, neither actor has ever confirmed that they're together, opting for quiet nights in, walks in Central Park and incognito dinner dates over red carpet events over the years.

Watch Corinne Foxx's interview at the top of the page.