Joel Madden and Nicole Richie
ean Baptiste Lacroix/WireImage
06/21/2009 at 10:00 AM EDT
For Joel Madden
and Nicole Richie
, being uninformed is bliss when it comes
to the impending birth of their second child
"We don't know what the sex is," he told PEOPLE Friday before deejaying at Prive Las Vegas. "We waited on the first one and it was such an awesome experience that we can't wait to see what the next one is. It's exciting to wait it out."
While the couple are happily awaiting baby No. 2, the stress level is definitely lower than it was when their first child
, Harlow, was born.
"It's a lot easier," he said, his twin brother Benji by his side. "You've already been through it and it's not as intense and dramatic. We're a little more relaxed. It's actually kind of nice."
His advice for new fathers: Roll with the punches. He said, "You just have to roll with it and learn as you go."