Rapper T-Pain stunned fans at a pre-Christmas Los Angeles show last week when he brought out mini-Britney Spears for a number.

Only it wasn't the real Spears - but a Toxic doppelganger.

Fans at the Universal Amphitheater were stunned as little person Terra Jole, a famed Spears impersonator, stepped out to perform with the rap star.

T-Pain teased the crowd with, "There's an artist I'd like to introduce. They have an album called Circus , and they've joined me on tour."