Fergie's All-Star game national anthem leaves audience confused

A bizarre rendition of the national anthem performed by Fergie  at the NBA All-Star game left audience members and players scratching their heads.
The singer appeared to struggle to hit notes, as the camera caught many different expressions of those on the court and in the crowd at the game.
Many viewers at home took to Twitter to express their disapproval of the performance which Fergie appeared to try and jazz-up.