According to TMZ, Rich the Kid and his entourage were involved in a robbery and pistol whipped while the rapper was recording at a studio with Usher. Rich the Kid was reportedly outside of the studio when the incident happened, while Usher was inside. 

The two artists were recording at Westlake Recording Studio in Hollywood, and authorities say that as many as ten shots were fired during the incident. They also believe that Rich was the target of the robbery, which happened shortly after he posted a photo on Instagram of him holding a stack of cash while standing in front of his Lamborghini. A rep for Rich the Kid revealed that he was doing okay after the incident, while one of his bodyguards was badly pistol-whipped. 

Source: TMZ