Singer was partying with pals at Coachella Music and Arts Festival over the weekend . The singer is currently on tour in support of his new album 'Believe' which comes out September 29. Speculation has been rife as to what exactly is going on in the video . A comment on Instagram , believed to be from Rihanna , claims it was a joint . This is not the first time Rihanna has found herself mired in controversy at Coachella . In 2012 she posted a picture of herself 'cutting up ' a white powered substance on the top of a man 's head .
Singer was partying with pals at Coachella Music and Arts Festival over the weekend . Video posted on Instagram appears to show the singer preparing a suspicious substance and then holding her nose . Speculation has been rife as to what exactly is going on in the video . A comment on Instagram , believed to be from Rihanna , claims it was a joint . This is not the first time Rihanna has found herself mired in controversy at Coachella . In 2012 she posted a picture of herself 'cutting up ' a white powered substance on the top of a man 's head .