Chris Kirkpatrick is in awe that his former ‘NSync bandmate Justin Timberlake performed a full tour amid a battle with Lyme disease. “I’ve always known my little bro was tough — but this tour showed me a whole new level of strength,

Chris Kirkpatrick is praising Justin Timberlake for pushing through his tour while battling Lyme disease. On July 31, Timberlake opened up about his Lyme diagnosis for the first time, after closing out the final performance of his tour -- Forget Tomorrow World Tour.

On Thursday, the singer shared a lengthy message via Instagram about his Lyme disease diagnosis, which he called "relentlessly debilitating."