Your little ones are getting bored with all of this “hush-a-bye” stuff. They want to rock their cradle along with their music loving parents. And now with Kate Middleton due any day and celebrity babies from Penelope Cruz, Kate Winslet, and Halle Berry expected later this year, it’s time to up your lullaby game. Luckily, The Cradle Will Rock has all of your favorite tracks in Gerber-form. The Beatles, Metallica, Journey, Bjork, and Nirvana are re-recorded in soothing piano and xylophone sounds that will put you and your babe to sleep. Never thought you’d nod off to Black Sabbath? Set your speakers in the baby’s room and get your nap on.