Bruce Springsteen has become a first-time grandfather. The 72-year-old rocker’s son Sam Springsteen, 28, welcomed a baby girl named Lily Harper Springsteen with his fiancee – with Bruce’s wife Patti Scialfa sharing the happy news online and congratulating the couple. Patti posted a black and white picture of the new parents pushing a buggy on Instagram and wrote: “Walking the baby … Lily Harper Springsteen.” She also uploaded a picture of baby Lily wearing a pink hat and matching pink gloves. Congratulations poured in from across the showbiz world, with Eddie Vedder’s wife Jill writing a spe…