With virtuosic narration by Weird Al, fans of all ages can explore the story like never before as young Billy catalogs his wildly improbable career choices in an unbridled celebration of creativity and possibilities. With multiple interactions and animations on every screen, fun and challenging games based on the story, and the ability to personalize the app, users will eagerly consider what they want to be when they grow up.

"Ever since I was a small child, I dreamed of one day helping to produce a cross-platform app that would be sold in the iTunes Store. I was a very prescient kid," says Yankovic.

Along with exclusive new art, the When I Grow Up app contains all the dazzling wordplay, hilarious rhymes, and whimsical illustrations that readers have raved about since the book's publication in February. Other fun and fabulous highlights from the app include:

Excellent Games — 3 interactive games give users the opportunity to try their hand at unusual career options from the story. Never shaved a tarantula before? Well, here's your chance in the "Tarantula Shaver" game! Or test your job qualifications with "Extreme Snail Race" and "Gorilla Masseuse."

Extensive Interactions — Tap, swipe, pinch, and tilt your iPad, iPhone, or iPod touch to interact with the characters and settings. Over 50 interactions engage users for hours on end.

Personalization – Include your name in the app and see it carried through the entire story.