Rihanna under fire for being 4.5 hours late for charity video shoot

Rihanna kept 2,500 high school students waiting for four and a half hours.

The 'Stay' singer has come under fire for appearing at Barrington High School in Chicago extremely late and staying just 16 minutes after the school won a competition, sponsored by her, by producing a video highlighting their charity work and using her hit song 'Diamonds' as the soundtrack.