Sometimes, an ostentatiously outsized diamond ring does not a celebrity engagement make. Kate Hudson and Owen Wilson are shooting down reports that they've decided to make their rekindled romance legally binding. On Sunday, Britain's News of the World claimed the issues-dealing funnyman, 39, had popped the question, citing as proof a picture of the actress, 29, sporting a doorknob-sized solitaire on her all-important finger last week in Boston, where she's filming the romantic comedy "Bride Wars." "Kate supported Owen during his low patch and that proved to him she's the woman he wants to be with forever," a Hudson "pal" proclaimed to the tabloid. "He picked out the ring and went for the biggest one he could find. He was nervous about proposing but Kate was thrilled and the whole thing was really emotional." Alas, the whole thrilling, emotional thing apparently never happened. "She's definitely not engaged," Kate's mouthpiece insists to Us, adding that the ring was merely a prop for her nuptial-themed flick. Wilson's rep also moved quickly to quash the rumblings, issuing several "I do" denials.

Mariah grips onto her hair in order to keep her weighed-down hand from flopping to her side.

In other rock-related news, exceedingly optimistic newlyweds-cum-soul mates Mariah Carey and Nick Cannon made the scene at Time magazine's 100 Most Influential People in the World soiree Thursday night in New York, where their glittery bands turned them into walking disco balls. People helpfully breaks down the specs on their gaudy baubles, with the bright-and-shiny-object-loving chanteuse's $2.5 million pink diamond sparkler crammed with a 10-carat emerald-cut center stone, 58 smaller pink diamonds and two half-moon diamonds hugging either side. "I wanted to do something extremely special, something that Mariah would really appreciate," Cannon explains to the magazine. "We got the pinkest stone we could find, surrounded by other diamonds." Sighs a contented Carey, "It's so clear, you can see my finger through it." The spendthrift actor's hefty band is equally flashy, and by flashy, we mean it looks as if it was dipped in glue and rolled in a bowl full of diamonds. But the lovebirds of seven long weeks seem most enamored with their his-and-her tattoos -- she has "Mrs. Cannon" inked down the center of a butterfly on her lower back while he's emblazoned "Mariah" in approximately six-inch-high letters from one shoulder blade to the other. "Rings and all that is special and exciting," Nick declares to the mag. "But to us, tattoos mean more than anything because it's something we never thought we'd do." (And somewhere, a tattoo removal service sits by the phone, impatiently waiting for the inevitable call to fire up the laser.)

Paris proves she can strike her patented arched back pose while still flashing a suspicious band on her ring finger. View more photos of Paris.

For Paris Hilton, a diamond really does mean forever. The Benji Madden-besotted starlet is currently showing off a double band on her ring finger, a gift from her Good Charlotte boyfriend of just over two months. But she tells People the diamond-encrusted ring isn't a sign of an imminent aisle-walk, downplaying, "No, it's just a present. He's sweet." Still, Madden is likely feeling the pressure from Hilton's repeated declarations that only the cold clammy hand of death will tear them asunder. "I'm so happy. I'm so in love. I know I want to spend the rest of my life with him," she baby-talked to an understandably skeptical David Letterman last week. "I know I want to be with him forever." When the "Late Show" host expressed his reservations about her as-long-as-we-both-shall-live pronouncement, Paris adopted a more forceful tone as she defended their twoo love, insisting, "He's the most loyal, honest, incredible person in the world. I feel just blessed to have found him. He's changed my life." Another hopeful sign: She was far more enthusiastic about Benji than the various branded products she was plugging on Letterman, including her champagne in a can and fake hair in a box (feel free to insert your own "dumber than a box of hair" joke here). Hilton's product shilling continued Friday night when she donned cascading Barbie-like tresses when she and Madden hit Los Angeles hot spot Villa. Still, she assures People, "When I was younger I loved to go out, but now that I'm in a really great relationship it's so much more fun to stay at home."

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