American singer and actor Justin Timberlake has publicly disclosed that he has been diagnosed with Lyme disease, describing the condition as "relentlessly debilitating." Timberlake revealed his diagnosis in an Instagram post, explaining that he experienced severe symptoms such as nerve pain, extreme fatigue, and overall physical and mental toll during his two-year "Forget Tomorrow" world tour. The diagnosis sheds light on the challenges he faced while continuing to perform amid criticisms of his recent concert performances. Lyme disease, transmitted through tick bites, can cause neurological, joint, and cardiac problems. Timberlake joins a number of other celebrities, including Justin Bieber and Avril Lavigne, who have been diagnosed with the disease. His former *NSYNC bandmate Chris Kirkpatrick expressed admiration for Timberlake's perseverance in completing the tour despite his health struggles. The announcement has also drawn attention to Lyme disease, which affects nearly 500,000 people annually in the United States, according to the CDC.