Timberlake, who has been married to Jessica Biel since 2012, was spotted holding hands with Wainwright at a New Orleans bar.
The 22-year-old model is the only member of her famous family who doesn't have children.
The full H&M collection in collaboration with couture designer Giambattista Valli is out now.
Plus, more of her famous daughters posted sweet tribute posts.
Take a look at all the sweet posts!
From 'The Little Mermaid' to Elle Woods and a birthday celebration, Kendall, Kylie, Kim, Kourtney, Kris and Khloe totally won Halloween
Kendall Jenner got her birthday festivities started early with a star-studded costume party on Halloween.
The former Olympian celebrated her birthday with her family after years of feuding.
Caitlyn Jenner's famous family came together to celebrate her 70th birthday.
The queens of Halloween have had the spooky season on lock for years!
The two models shared a friendly kiss on Jenner's Instagram Story for the special occasion.
The reality TV sisters and their momager are putting their old items up for sale.
The model has been spending a lot of time with Fai Khadra.
The Kardashian-Jenner women pose together for 'CR Fashion Book.'
