Britney Spears hit the stage in Mexico City to perform her Femme Fatale concert for free. The 30-year-old pop star, wearing a slew of her sexy outfits, rocked the crowd at the Monument to the Revolution.

The mama of two Tweeted:

“I’ve had so much fun and received so much love from my fans all over the world while performing my Femme Fatale tour which I am grateful for. I want to return some of that love so I’ve decided to give my fans in Mexico a special night and perform my Femme Fatale show for free.”

Just last Friday, Spears celebrated the big 3-0. Reportedly longtime beau Jason Trawick is close to popping the question. Put a ring on it already, J!

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