Bands With Brothers: From Love -- to Love to Hate - Spinner

contractually obligated to be BBF (Best Bros Forever). Conspiracy theories aside, there's no denying that Joe, Kevin and Nick are a pretty tight unit. In most bands, one brother starts a side project and the next thing you know they're suing one another for royalties. But when Nick Jonas and the Administration took the stage at this year's American Music Awards, they were introduced by none other than Joe and Kevin.
Sibling Rivalry Quotient: 0.5

My Chemical Romance

They're both marching in a Black Parade of angst and eye makeup, but MCR's Gerard and Mikey Way are all warm and fuzzy about each other. Mikey threw his support behind his big brother during Gerard's struggles with drugs, alcohol and depression, and Gerard returned the favor by being best man at Mikey's 2007 Las Vegas wedding.
Sibling Rivalry Quotient: 0.8

The Beach Boys

Brian, Carl and Dennis Wilson weren't exempt from fraternal strife, between Brian's mental breakdowns (which led to his refusing to tour) and Dennis' alcoholism (which led to his 1983 drowning death). But in the wake of Carl's passing away in 1998, the other Beach Boys (Wilson cousin Mike Love and Brian's school friend Al Jardine) have hit Brian with a series of lawsuits. Perhaps they were harboring lingering soreness that the band's label was named Brother Records.
Sibling Rivalry Quotient: 3.3

Good Charlotte

When they're not busy talking in some spooky identical-twin language, Good Charlotte frontmen Joel and Benji Madden bicker like a pair of 12-year-olds. But unlike some of our more notorious siblings, the