10 Ways Stars Say 'I Love You'

Brad Paisley was inspired by wife Kimberly before he even met her – writing some of his album Part II after seeing her in Father of the Bride. And she's still his muse, appearing in his sweet ode "Little Moments." When Paisley sings, "And I can't even remember now/what she backed my truck into," Kimberly chimes in, saying, "I never crashed your truck, you know." His reply? "Give it time."

What better way to spell out your love than with his-and-her ink? Just before their surprise wedding in 2008, Mariah Carey and Nick Cannon got permanent tattoos to commemorate their nuptials. "His is on one shoulder to the other and it says 'Mariah,'" Carey told PEOPLE. And hers? "It's on my lower back and it says 'Mrs. Cannon.'"

In 1998, David Beckham proposed to now-wife Victoria with a $65,000 3-carat diamond solitaire. But he needed something to sparkle on his finger as well, so the Spice Girl bought a lavish $80,000 ring for her man.

Garth Brooks surprised longtime girlfriend Trisha Yearwood by popping the question onstage during a concert at Buck Owens's Crystal Palace in Bakersfield, Calif., in 2005. "You're not going [to do this] in front of these people?" Yearwood asked – at which point Brooks got down on his right knee and asked, "Will you marry me?" Yearwood instantly said yes and wiped away a tear.

There's PDA, and then there's PDA. Ashton Kutcher and Demi Moore Tweet love messages, cute pictures and more to each other on their Twitter pages, with the actress recently uploading a suggestive picture for her husband, where she wrote on her chest and hands, "Bed time?"

A year after their lavish wedding in Malibu, Fergie and Josh Duhamel renewed their vows at a resort in Santa Barbara, Calif. The twosome were actually inspired by another celeb pair. "We got the idea from Heidi Klum and Seal," Duhamel told Entertainment Tonight. "We want to do it every year."

Last March, Ashlee Simpson-Wentz put her passion for hubby Pete Wentz on display at the MTV Australia Awards. Amid cheers from the crowd, the couple kissed for several minutes onstage. "Sorry, we haven't seen each other in a while," Wentz told the crowd. "We're going to go and find some quiet time and fornicate somewhere."

Just because you can afford designer duds doesn't mean you always have to wear them! Christina Aguilera and husband Jordan Bratman doff their clothes once a week for "naked Sundays." "We just do everything in the house, and we're just cozy and laid back," the star told Ellen DeGeneres. "We don't need to go anywhere, we're just with each other. We do everything naked. We cook naked."

Some people shout their love from the rooftops. Tom Cruise shouted his from the top of Oprah Winfrey's couch during an appearance on her talk show. Amid giggling, falling on his knee and jumping, he declared, "I'm in love" – then went backstage and pulled Katie Holmes on-camera for a hug and a kiss.

For her 20th birthday, Hilary Duff thought her hockey player beau Mike Comrie would get her "shoes or something," she told PEOPLE. Well, the present did help her go places: Comrie surprised the actress by leaving a Mercedes-Benz G-class SUV (a $100,000+ ride) in her garage – complete with a red bow on top.