“I’d never been to a baby shower,” Mariah Carey tells the new issue of Life & Style, on stands now. “This was my first one — it was so festive!” The singer and her husband, Nick Cannon celebrated the arrival of their twin boy and girl at the rooftop Conservatory Grill at the Montage hotel. Guests–including celeb pals American Idol judge Randy Jackson, host Piers Morgan, actress turned director Penny Marshall, Sopranos alum Lorraine Bracco, and director Brett Ratner–noshed on a selection of gourmet pizzas and appetizers and enjoyed Mariah’s very own champagne, Angel. “Nick and I were so grateful to everyone who came to celebrate with us,” Mariah tells Life & Style. “There was a lot of love in the room, and to top it off, fans from more than 50 countries sent well-wishes and stories in a book they made for our twins titled Always Be My Babies, which was the sweetest gesture in the world, It was a night I will never forget.” Carey is due in late April or early May. More baby shower photos are featured in the new issue of Life & Style, on newsstands nationwide now.