Vlogbrothers is a video blog channel on YouTube. The Internet-based show is created and hosted by the Green brothers: John Green and Hank Green. The first incarnation of the brothers' online broadcasting was the "Brotherhood 2.0" project, preceding the establishment of the pair's regular vlogging activity through the Vlogbrothers channel.

The Fault in Our Stars is a novel by John Green. It is his fourth solo novel, and sixth novel overall. It was published on January 10, 2012. The title is inspired by Act 1, Scene 2 of Shakespeare's play Julius Caesar, in which the nobleman Cassius says to Brutus: "Men at some time were masters of their fates, / The fault, dear Brutus, is not in our stars, / But in ourselves, that we are underlings." The story is narrated by Hazel Grace Lancaster, a 16-year-old girl with thyroid cancer that has affected her lungs. Hazel is forced by her parents to attend a support group where she subsequently meets and falls in love with 17-year-old Augustus Waters, an ex-basketball player, amputee, and survivor of osteosarcoma.