Lea Michele has spoken out to rubbish reports of a feud with her Glee co-star Naya Rivera.

The 27-year-old actress-turned-pop star used an appearance on David Letterman's chat show in the US to shoot down the gossip that a beef between the pair led to Rivera's departure from the show.

She said: "It's really unbelievable, the amount of things that can be just completely made up. And it's really frustrating.

"I think that the way that people to pit women against each other is really annoying, and it's really sad."

Rivera's rep has recently denied that the star was fired from Glee.