Chris Kirkpatrick took to Instagram to shower praise on Timberlake, who revealed Thursday that he was diagnosed with the debilitating disease.

After wrapping up his extensive "Forget Tomorrow" world tour, former NSYNC star Justin Timberlake got candid about his health struggles - namely, his recent diagnosis with Lyme disease. What is Lyme disease?

Justin Timberlake is back at home — and in good spirits — after closing his world tour last week. Timberlake, 44, took to his Instagram Stories on Monday, August 4, and shared a snapshot of himself smiling and sticking out his tongue while sporting a gray sweatshirt that read: “I’m not doing s*** today.