Maybe your asking yourself who is Ansel Elgort? Only the star of the top grossing film from this weekend's box office, 'The Fault in Our Stars'.

The film is based on a novel by John Green which follows the love story of two terminally ill teenagers, but it's not all about cancer. In fact, the story is really about first love. I haven't seen the film yet, but I have listened to the audio book, and I enjoyed it very much. As you might have guessed, you'll want to take your tissues because you will likely cry.

And if you're looking at the photograph thinking, 'He looks familiar..."

You're right. He recently portrayed Caleb Prior, brother to Tris in Divergent, which also stars Shailene Woodley his co-star from 'The Fault in Our Stars.'

Ansel talks about the film, it's large fan base and Shailene in this interview with Ellen.

Think you want to see 'The Fault in Our Stars?' Check out the most liked trailer here.