Jimmy Fallon, host of NBC's The Tonight Show and #1 New York Times bestselling author, is back with a book for grandfathers.

It may seem like PAPA doesn't do ANYTHING but sit in his chair. But he does so much more!

From flying a plane to playing in a band, there's so much this PAPA has done. But through all the things he's accomplished in his life, there's nothing he wouldn't do for you.

Jimmy Fallon, one of the most popular entertainers in the world, reminds us that even though it may not look like it, PAPAs are always doing SOMETHING.