While it's kind of an outdated tradition, there are still a few guys who ask their girlfriend's father for permission before they pop the big question. But what if her dad says "No?"

Stars! They're just like us! Even their immense fame doesn't get them out of bridesmaid duty! For one day, these 11 celebrities had to hold someone else's train, walk down the aisle BEHIND someone else, and pose for dozens of photos where they weren't the focus.

Here are 11 stars who stepped out of the spotlight to support their bridal BFFs:

Call a doctor! We need someone to take away the pain we've been feeling over the loss of Derek Shepherd, who died after being hit by a tractor trailer on a recent episode of Grey's Anatomy. Yes, folks, McDreamy has gone on to the cable syndication afterlife.

From the floral arrangements to the reception hall, weddings are EXPENSIVE. There's no telling what seemingly insignificant thing you'll have to pay for next. That's why brides are salivating for a bargain once the Running of the Brides sales come along.

Some celebrity couples are desperate for the glare of the paparazzi's lens. It's like they can't even take a breath without giving an exclusive interview about it. When it comes to a huge event, like their wedding, the rights are sold to People Magazine before the engagement ring has even been bought.
There are some celebrities, however, that actually WANT their private lives to stay private.

Here are 9 famous couples who succesfully kept their wedding day a secret from the press: