Dave Hogan/Getty Images
- Oasis band members Liam and Noel Gallagher have feuded for about 15 years but may be reuniting.
- Some famous sibling rivalries ended up in court, while others resulted in physical fights.
- Kim and Kourtney Kardashian famously got into an epic brawl on "Keeping Up With the Kardashians."
Some sibling rivalries are purely playful, competitive one-upmanship, but others have ended up in court.