Let's get started — see if you can match up these celebs with their cell phones!

1 of 5

Guess who's heading into her trailer?

2 of 5

Guess who's toting her iPhone?

3 of 5

Guess who's got his cell phone covered in lime green?

4 of 5

Guess who took her BlackBerry along for a night out on the town?

5 of 5

Guess who's checking her email while on vacation?