09:22 PM EDT 08/23/2014
Originally posted 05/08/2013 11:45AM
It seems like decades ago that Nick Lachey and Jessica Simpson were the first couple of reality TV – but on Tuesday's Watch What Happens Live, host Andy Cohen couldn't seem to forget!
When Lachey, 39, and the rest of 98 Degrees visited Cohen's talk show, the singer's ex-wife and her family were hot topics.
During "Plead the Fifth," a question-and-answer game Cohen plays with celebrity guests, who can stay silent rather than answer an uncomfortable question, the subject of Simpson's father, Joe, came up.
Top 10 News Categories
The most buzzed about stars this minute!
Treat Yourself! 4 Preview Issues
More On PEOPLE.com
Got a News Tip?
Send it to our People.com editors!