Selena Gomez falls off stage

Pop star Selena Gomez took a tumble while performing at a concert in Fairfax, Virginia.

The 21-year-old was performing on her track "Slow down". When she joined her dancers in a routine, trying to get the crowd going, she fell off, reports contactmusic.com.

Gomez misjudged how close she was to the edge of the stage, and landed on her knees.

A back-up dancer quickly came to her rescue, but Gomez didn't give up. She continued to sing and entertained the crowd.