Mischa Barton is Mad for MTV

Mischa Barton attends the MTV Australia Awards 2008 Press Call at the Hilton Hotel in Sydney, Australia on Thursday.

The 22-year-old former O.C. actress said of the event, “I am really excited to be coming back to Australia.” “I’m looking forward to a great night of live entertainment.”

Juliette Lewis will perform with her band Juliette and The Licks at the MTV Australia Awards this Saturday, along with Eve and 50 Cent, while Mischa will be the star presenter.

More pics of Mischa promoting MTV Australia…