Mike Posner's walk across America came to a screeching halt this week.

On Thursday, the 31-year-old singer-songwriter shared a video of himself strapped to gurney while surrounded by medical personnel. Posner explained the situation in the Instagram caption, claiming he was airlifted to a Colorado hospital after he had sustained a rattlesnake bite.

"I had just crushed 16 miles and was going for eight more when I got bit by a baby rattlesnake!" he wrote. "That venom is no joke! I got to the hospital and got the anti-venom in time [...] I’ll be here a few days and will not be able to walk for several weeks but enjoying the AC and the nice bed, haven’t had those in a while Hahahaha! Can’t wait to get back on The Walk! KEEP GOING!!!!!!"

Posner shared an update via Twitter on Saturday, informing fans he was recovering much faster than expected. The artist shared a clip of him back on his feet, taking small steps with the help of a walker. He also made sure to show love to the hospital staff and his "whole family in the ICU."

Here's hoping Posner makes a full and speedy recovery.

The "Cooler Than Me" singer kicked off his cross-country trek on April 15 in New Jersey with the plan to reach Venice Beach, California, sometime in the fall. Posner told Billboard he decided to embark on the journey following the death of his father and good friend Avicii.

"I feel everyone has a list of things they'd like to do in life and then a list of things they have to do," Posner explained. "After (the deaths) I realized I couldn't wait to do these things I had to do on that list. I'd been putting (the walk) off for years and years and years. The time is now."

Posner said he hoped the trek would help his creativity as well as teach him lifelong lessons and skills.

"I'd like to fall in love with the present moment and not worry so much about how far I am from the goal," he explains. "The first 30 years of my life, I've set a goal out in front of me and worked like hell to get it. I always felt like something is wrong until I get there. On this walk...I have to figure out how to be in love with where I am right now. That would be good and be a skill that would benefit my life ahead."