The 24-year-old was partying with friends at the 1 OAK nightspot after her performance at the iHeart Radio festival over the weekend. The celebrations became too much for her and she struggled to control herself before throwing up.
“She threw up in a napkin. The guy with her handed her a white towel to clean up,” a source told thesun.co.uk.
However, the incident didn’t ruin Rihanna’s night as she carried on and was later spotted heading to notorious strip club Spearmint Rhino.
She 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.