Justin Timberlake shared his first update since returning home from his Forget Tomorrow World Tour, which concluded in Istanbul, Turkey, on July 30.

The "SexyBack" singer marked the end of his two-year "whirlwind" tour with a post highlighting "the most fun, emotional, gratifying, and physically demanding" experience, while also disclosing information about a medical condition that's proved difficult to manage.

"I’ve been battling some health issues, and was diagnosed with Lyme disease — which I don’t say so you feel bad for me –– but to shed some light on what I’ve been up against behind the scenes. If you’ve experienced this disease or know someone who has — then you’re aware: living with this can be relentlessly debilitating, both mentally and physically," Timberlake wrote of his condition.

Upon returning home, the "Summer Love" star posted an Instagram Story detailing his new, post-tour itinerary. Timberlake wore a shirt that said "I'm not doing s*** today," followed by an empty box that read, "mission accomplished." The standout humorously confirmed the message by checking the box and adding a string of green check marks, signaling his commitment to doing absolutely nothing.

For more on Timberlake's diagnosis, read Justin Timberlake Unveils Extremely 'Debilitating' Medical Diagnosis.

See screenshots of his latest Instagram update on US Weekly, and view his final tour post below!

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