Oops! Has she done it again?

BRITNEY SPEARS sets tongues wagging in Las Vegas — by sporting a huge diamond sparkler on her ENGAGEMENT finger.

The Oops! . . I Did It Again singer — clad in what looked like a purple NIGHTIE — stunned onlookers as she partied until 2am at a new club.

Twice-wed Britney, 25, who tied the knot with first hubby JASON ALEXANDER in the gambling capital, was spotted getting up close with her fellow VIP guest — stage magician CRISS ANGEL. He has previously been linked with Hollywood beauty CAMERON DIAZ.

One reveller said: “They danced and at one point he kissed her hand.”

Source: The Sun