Liam and Noel Gallagher
These brothers look so similar, and hate one other so much, that sometimes it's hard to keep them straight. Noel is the one who left Oasis in 2009 after he claimed his brother Liam was missing gigs because he was either drunk or hungover. Leading up to that, Liam was openly mocking Noel on stage during shows while he plugged his clothing line. They've both sued each other, so undoubtedly this will all get worked out.