Mariah Carey fetes her soon-to-arrive twins — and Life & Style was the only magazine invited!

As Nick lovingly documented every move his glowing wife Mariah Carey made on a handheld camera on March 6, it was clear he'll always be Mariah's baby. But he's about to get some welcome competition: The A-list couple had gathered an intimate group at LA's luxe Montage Beverly Hills hotel to celebrate the arrival of their twins, due in late April or early May.

"I'd never been to a baby shower," Mariah tells Life & Style. "This was my first one — it was so festive!"

Festive is a serious understatement....