By Hollywood standards, 10 years is pretty much a lifetime! On Saturday, Katherine Heigl took to her Instagram to wish her husband Josh Kelley a happy 10th wedding anniversary with a lengthy message and a silly nude photo with a sillier story behind it. The former Grey's Anatomy star detailed the long history of the goofy bathtub pic in her heartfelt post. She began, "So when @joshbkelley and I had been dating a few months or so we took the first totally random #royaltenenbaums esq photo. Last night 12 years later we took a second one to commemorate our 10 year wedding anniversary." The actress, who just celebrated their son's first birthday earlier in the week, added, "A few things...