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In a black jacket with a plunging neckline, Lady GaGa showed off some serious cleavage while she signed copies of her new album, The Fame Monster, for fans at Best Buy in Los Angeles.

And behind those impenetrable black sunglasses of hers, GaGa realized that her loyal followers might be getting an appetite, waiting in line to see the pop princess

To keep the masses from getting grumbly tummies, the singer ordered 80 cheese pizzas to be delivered from Papa Johns. She posted on Twitter, “Sending all my little monsters little pizzas for waiting all night for me at Best Buy. I hope you’re hungry… eat up I love u!”

Fans waited dutifully in line for a collector’s edition of the album, which each came with a personal note from the musician, a jigsaw puzzle and a lock of her hair. Talk about a personal touch…

Gallery Info: Lady GaGa signs copies of her new album, The Fame Monster, for fans at Best Buy in Los Angeles.