Jessica Simpson and Nick Lachey
The world watched when singer Jessica Simpson married 98 Degrees star Nick Lachey back in October 2002, aged just 22. Their reality TV show about their wedding and new life as a married couple, Newlyweds, was pretty much the forerunner for other similar shows, like Keeping Up With The Kardashians, et al.
As we all know, that Newlyweds haze wore off after a few years and the musical couple parted ways in 2005, proving that such young love in front of a global audience of millions isn't always a recipe for a lasting relationship.
We're sure Miley and Liam will be smart enough to not broadcast the first years of wedded bliss on TV!