Nicole Richie and Joel Madden are due to welcome their first child any day and they’re not the only ones psyched for the new arrival. Josh Madden, Joel’s older brother, can’t wait to be an uncle, he tells OK!.

"I’m very excited," he tells OK! at the Fuze Resolution Slenderize event benefiting the American Diabetes Foundation. "And Joel’s ready! He’s going to have such a positive effect."

Nicole is due "some time" next week, Josh adds, but kept his lips zipped on other details — not because he doesn’t want to share, but because he swears he know nothing else.

"That’s all we know. I don’t know what it is," he says. "I don’t know any names. I’m being completely honest."

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