I was a couple of months away from being a dad when my girlfriend and I received unsolicited lessons on how to be parents. The teachers for the class we didn't sign up for had a cute 6-month-old. My girlfriend got to hear horror stories about delivery and breastfeeding. And when their baby started acting up, I received a different lesson. The dad pulled out his iPhone and told me, "Bro, this is going to be your best friend."
Music started playing. It was a xylophone and gentle rattle that you might hear on any number of Fisher Price toys, but the melody was familiar. "Is that Coldplay?"
"Yeah, bro check it out." He flipped over to reveal Rockabye Baby's lullaby rendition of a Dave Matthews Band song. Then he showed me Nirvana and Guns N' Roses, both adapted for babies. Each album had a teddy bear replacing an iconic cover image. For instance, the GNR one featured the Appetite for Destruction cover, but all the faces on the cross were cuddly teddy bear caricatures of the band members, down to Slash's top hat.