Rihanna takes a tumble on stage (Video)
(CBS) No matter how famous singers are, they're still subject to the laws of gravity.
Rihanna learned that the hard way during a recent performance in Canada.
While performing her hit "What's My Name?" at the Rexall Place in Edmonton, Alberta, the singer tripped in her high heels and fell to the stage on her hands and knees. She immediately got back up and finished the rest of the song.
Rihanna kicked off her "Loud" tour on June 4 in Baltimore, according to The Hollywood Reporter.
Meanwhile, a rep for Cee Lo Green told the New York Times that the singer has dropped out of Rihanna's tour, citing his commitment as a coach on NBC's singing competition "The Voice," along with preparations for a book and a new album.