Guests smart enough to invoke the one-year rule are off the hook for a gift.

Reports of racy texts from Parker -- not to Longoria -- surfaced when the break-up became public.

Blame David Stern? Like Humphries and Kardashian, these two got married during an NBA lockout.

The gold standard in athlete-celebrity marriages.

Their "20/20" interview with Barbara Walters was a train wreck as Givens dissed Tyson while he sat next to her stoically, apparently medicated. Fittingly their divorce was finalized on Valentine's Day.

Berry supposedly had "David" tattooed on her butt, which she showed David Letterman but not viewers during a guest appearance on the "Late Show" in 1995.

This lasted long enough to produce three kids.

The original supermodel (they were all just models before that) and the longtime Rangers defenseman were married 18 years before divorcing in 2001.

After two years of marriage, they divorced in 1999, which might have helped Agassi refocus on tennis. He won the French and U.S. Opens that year after going four years without winning a Grand Slam event.

They were married in 2001 and divorced in 2003, according to Fedorov. Kournikova has never acknowledged either event.

They were married for five years and left on good enough terms that Fox guest-starred on Williams' ABC show "Ugly Betty" as her character's bodyguard.

Each left a longtime spouse to be with the other, but this marriage lasted just 15 months.

Kitaen is perhaps best known for starring in the video for Whitesnake's "Here I Go Again." Police arrested her for allegedly attacking Finley in 2002.

The former "Baywatch" star/"Playboy" cover model divorced the veteran NHL defenseman in 2007, but two years later Puck Daddy was reporting that the "brutal battle over custody of their daughters is making tabloid headlines thanks to a combination of sex, salary and Sin City."