Rock Offspring Destined for Greatness

Canadian jazz pianist and singer Diana Krall is well known for her dazzling contralto vocals -- but she's perhaps even better known for her marriage to Elvis Costello, with whom she has twin sons, Dexter Henry Lorcan and Frank Harlan James. Born December 6, 2006 in New York City, the now-six-year-old twin brothers Costello must have the DNA of budding musical superstars -- but will they follow in the family business?

In the last decade, Mates of State's Kori Gardner and Jason Hammel have gotten married once, had two children and recorded five albums -- not necessarily in that order. Nine-year-old Magnolia (Mags for short) and five-year-old June (born in January, obviously) are by definition indie-pop prodigies, if for no other reason than the fact that they have exceptional rock star parents. How long until they start sharing some infectious bubblegum harmonies?

Four years after divorcing her first husband, Rancid's Tim Armstrong, former Distillers/Spinnerette rocker Brody Dalle married Queens of the Stone Age's Josh Homme. The couple already had one child, Camille Harley Joan Homme, at the time of their wedding, and in 2011 Dalle gave birth to her second child, a baby boy named Orrin Ryder Homme. There's no doubt about it -- this new generation of Hommes was probably head banging in the womb.

One of the most famous couples in rock, Bush frontman Gavin Rossdale and No Doubt singer Gwen Stefani, have two children together, both with unforgettable names: six-year-old Kingston James McGregor Rossdale and three-year-old Zuma Nesta Rock Rossdale. We're not quite sure what a mash-up of neo-grunge and ska-pop would sound like, but if either of these kids ends up playing music when they get older, we may find out.

The newest kid on the rock 'n' roll baby block is Arcade Fire members Win Butler and Regine Chassagne's boppin' little boy, who was reportedly born to the Canadian couple on April 21 in Saint-Lambert, Quebec. Little is known about baby Butler at this time -- you know, like his name -- but it won't be long before he's donning sound-blocking headphones and hanging out backstage with his dotting parents. And who knows, maybe it won't be too long after that that he's onstage himself, rocking for a whole new generation of kids whose parents were Arcade Fire fans.