Ouch! When Celebrity Siblings Face Off

From Kim & Kourtney Kardashian to Eric & Julia Roberts, check out famous family feuds – including one that's lasted 70 years

KIM & KOURTNEY KARDASHIAN

Length of feud: Hours
Anyone who's ever seen an episode of Keeping Up with the Kardashians knows E!'s most famous family is also its most temperamental. In January, Kim and Kourtney butted heads over motherhood, with Kim, who would later welcome a daughter of her own, criticizing Kourtney for her "boring and miserable" life. Though heated, the argument was resolved by episode's end, and fast-forward to the future, Kourtney was at Kim's side when she got engaged to Kanye West.