Pop star Mike Posner walks across America

Mike Posner began his walk across America in mid-April in New Jersey.

Mike Posner changes out his socks along a stretch of U.S. 40 near Hebron, Ohio.

Mike Posner uses a pair of walking sticks that he considers extra limbs.

Mike Posner usually walks 20 miles a day on his walk across America.

Mike Posner walks 7.5 miles in the early morning, 7.5 miles in the late morning and 5 miles in the afternoon.

Mike Posner films a video with Kathy Rogers, owner of the Depot Thrift Shop in Kirkersville, Ohio during his walk across America.

Mike Posner chats with Depot Thrift Shop owner Kathy Rogers during his walk across America.

Mike Posner displays a memento that was given to him by a fan in New Jersey during his walk across America.

Sun protection is key as Mike Posner walks across America.

Mike Posner takes a break after a 7.5 mile trek during his walk across America.

Mike Posner does yoga while his friend, Julian Roy, strums a tune during Posner's walk across America.