Pop icon Madonna elected to lip-synch during super-hyped halftime performance at the Super Bowl last year, but she said it was one of the most nerve-wracking experiences of her career.
The concert exodus came on the heels of the Australian government's calls for full disclosure from celebrities, namely Spears, who choose to lip-synch during a live concert performance in their country.
Most fans were quick to defend the fact Britney chose to lip-synch through the rest of the show, won over by her acrobatics - which included using two men suspended from the ceiling as a swing - while blindfolded.