This season of Rock the Block has a fresh new format. The HGTV series pits rookies against veterans for a new twist on the competition show. Chelsea and Cole DeBoer (Down Home Fab) and Tristyn and Kamohai Kalama (Renovation Aloha) are representing the rookies, while Alison Victoria and Michel Smith Boyd and Jonathan Knight and his brother Jordan are the veteran teams. While fans are certainly thrilled to see Jon's brother and New Kids on the Block bandmate on the show, it is a bit of a head-scratcher because Jordan is not technically a home renovation veteran.

It's reasonable to question Jordan's involvement because Jon has a natural HGTV partner and teammate in designer Kristina Crestin. The two have starred alongside each other in Farmhouse Fixer and competed as a team on season four of Rock the Block. Plus, they've made appearances on other competition shows like 100 Day Hotel Challenge.

On the fourth episode of Rock the Block, Jordan has prior commitments that keep him from working alongside his brother for the 48-hour challenge. So he calls in reinforcements, and Kristina steps in to save the day.

Before the episode aired, Kristina shared a behind-the-scenes photo on Instagram and gave an explanation for her absence. It came down to a scheduling conflict.

She wrote, "Whats happening here? An ever so brief check in to see @jonathanrknight in Salt Lake - check out Rock the Block tonight on @HGTV to see what I jumped in and helped with !!! ⁠I admit to being super bummed that I couldn't fit in doing RTB this year with my non TV projects under contract but the next best thing was a visit to pop in and not live through the insanity!!!! The best of all worlds !!! 💗"

It was a treat to see Kristina and Jon reunited, even if it was only for one episode! Here's hoping they'll be back on Farmhouse Fixer soon!

Headshot of Katie Bowlby

Katie Bowlby is Digital Director at Country Living, where she covers pop culture news including country music, Yellowstone, and all things HGTV, plus gift guides and product reviews. She has been with Country Living for more than 11 years. Before that, she worked for Southern Living. The Indiana University grad also stitches up the cross-stitch pattern for every issue of the magazine.