This Summer we tested your Guess Who Quiz skills with some of our hardest ones yet! Whether it's an homage to the season's anthem with "Guess Who's on a Boat?" or our latest in bikini bodies — check out how well you do on all the hottest quizzes of Summer!

Guess Who's Wet?

Guess Who's Celebrating the Fourth?

Guess Who's on the Beach?

Guess Who's on a Boat?

Guess the Bikini Body!

Guess Who's Partying?