Katie 'very serious' about FoxxParis, May 18 (AZINS) Actors Katie Holmes and Jamie Foxx reportedly enjoyed a rendezvous here - almost four years since their romance began.

Holmes is "very serious" about her relationship with Foxx, according to a source who told usmagazine.com: "She's head over heels for him."

The source added that Holmes is now "finally ready" to make the relationship public.

Holmes was reportedly "super worried" about the attention they received in Paris, but is now tired of hiding her romance with Foxx.

"They're talking about planning a summer trip together in Europe. They're very serious," the source said.