It's time to test your knowledge of what's happened this week with our favorite celebrities. Have you paid attention to everything that's gone down? Take the quiz!

1 of 10

What funky accessory did Brad Pitt wear in Tokyo?

2 of 10

What is Dakota Fanning's high school mascot?

3 of 10

How many siblings does Blake Lively have?

4 of 10

What did Matthew McConaughey wear outside on his birthday?

5 of 10

What was Britney Spears allowed to take through airport security?

6 of 10

Which actress did Kristen Stewart say she doesn't want to be like?

7 of 10

Where were Sienna Miller and Balthazar Getty spotted together this week?

8 of 10

Who didn't join Paris and Nicky Hilton at the Jimmy Choo party in LA?

9 of 10

What did Heidi Klum dress up as for Halloween?

10 of 10

Where did John Mayer perform this week?