Hawaii Five-O Casting News: JoJo, Nick Lachey, Vanessa Minnillo

We have three times the news for Hawaii Five-O fans:

1. The show will air a special episode the Sunday of the AFC Championship game, January 23.
2. Singer JoJo (pictured) will guest star on the installment as Courtney Russell, a young woman who goes missing on the day of a big storm.
3. Engaged couple Nick Lachey and Vanessa Minnillo will appear on a February installment... as an engaged couple. The latter's character will work on a cruise ship that gets apprehended by pirates.

Joel David Moore will also appear on this episode.

Matt Richenthal is the Editor in Chief of TV Fanatic. Follow him on Twitter and on Google+.