Nick Lachey and Jessica Simpson, whose reality show Newlyweds: Nick and Jessica made them household names, got divorced in 2006 and, according to Nick, hadn't seen each other since — until they ran in...

"We haven’t seen each other in those 20 years and then spent 6 1/2 hours on a flight to Hawaii together," Lachey said.

According to Lachey, “everyone was very, very cordial” and “very respectful.”