Hunger Games

actress Jena Malone has welcomed a baby boy into the world - and with him, a new entry into the pantheon of weird and wonderful celebrity baby names.

The 31-year-old star of films including Stepmom, Donnie Darko and Sucker Punch had a boy with her partner Ethan DeLorenzo, and announced the little bub's name overnight with a picture on her Instagram page.

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Ladies and gentlemen, here's little Ode Mountain DeLorenzo Malone.

Malone said the birth of her first child had been "the best weekend of our lives".

"What an incredible blessing to be chosen by this amazing, kind, gentle and beautiful soul to be his parents," she wrote on Instagram.

So how does the actress and musician - who played District 7 Tribute Johanna Mason in three of the Hunger Games blockbusters - stack up against other celebs when it comes to weird baby names?

Checking back on the last time we rounded up the oddest-named offspring of the rich and famous, we'd rank "Ode Mountain" somewhere between Ashlee Simpson's "Bronx Mowgli" and Penn Gillette's "Moxie CrimeFighter".

It's still got a way to go to beat our personal favourite - My Name Is Earl star Jason Lee named his son Pilot Inspektor.