Glee star Naya Rivera flashes chest in pole dancing competition before she was famous

LA: She plays cheerleader Santana Lopez on the hit PG series Glee. But before she was famous Naya Rivera engaged in some very R-rated behaviour.

In an unearthed video, the now 25-year-old gave judges an eyeful when she flashed her chest while she performed a daring routine for the Amateur Pole Dance-off on the Wild World of Spoke.

And she certainly seemed determined to win the top prize when after she was introduced to viewers as demure 20-year-old college student Naya, the Daily Mail reported.

For she dressed in a more than slightly provocative naught schoolgirl ensemble for the Spike TV show, with thigh-high stockings, skimpy blouse and tartan short skirt.

And when she decided to do a bit of extra-curricula 'studying' by reading a book while lying on the floor, she grabbed the judges attention by exposing herself when she closed the book.

Quite why she decided to take part in the show is anyone's guess, though up to that point she had been struggling to carve an acting career, making one-off appearances on little-known shows such as The Jersey and Even Stevens.

However, her antics certainly did not seem to do her career any harm, as in 2009 she won the role of randy cheerleader Santana Lopez.

She has developed into the show's most colourful characters, having relationships with Glee boys Puck and Finn, before finally becoming Brittany Pierce's girlfriend in season three.