OK! Wake Up Call: Kate Hudson's Hot Cover, Usher's Birthday Bash, and More!

Rise and shine, pop culture fans! Rub your eyes, get to stretchin’, and pour yourself a hot cup of coffee because it’s time to start your day off right with a little OK! Wake Up Call. It’s better than the blaring ring from your alarm clock, right?

Here are some things to know today:

Usher obviously invited Bieber to his birthday partay. (People)

Kate Hudson's bod is in tip-top shape! For real! (Shape)

What's an Aura Baby? Heidi and Spencer explain. (Us Weekly) 

Harry Styles talks about one of hottest ladies in the world. (E!)

Remember that dude who stole Darla away in The Little Rascals? Well, you've GOT to see him now. (Just Jared)

Here's a list of books you should probably get to reading—that is, if you want to keep up with the National Book Award winners. (Vulture)

It's John Mayer's birthday, so read this list of his most memorable quotes. (MSN)