Rihanna reportedly vomited at her VIP table on a night out in Las Vegas.

The singer was partying with pals at the 1 OAK nightspot in the city after her performance at the iHeart Radio festival over the weekend when the celebrations became too much for her and she struggled to control herself before throwing up into a napkin.

"She threw up in a napkin. The guy with her handed her a white towel to clean up," a source told The Sun. However, the incident didn't ruin the 24-year-old star's night as she carried on and was later spotted heading to notorious strip club Spearmint Rhino.

Rihanna is no stranger to controversy in nightclubs. Earlier this month, she is said to have been almost thrown out of The Rose Club in London when she smashed a table by leaping on to it and furious bouncers only allowed her to stay after her friends intervened while the singer shouted "Don't you know who I am?"