Godsmack bassist ROBBIE MERRILL has welcomed his first child into the world. The I Stand Alone rocker's wife HEATHER gave birth to baby daughter NIANNI CHAY on 18 January (07) at a Boston, Massachusetts medical facility. Nianni Chay weighed in at seven pounds (3.2 kilograms) and is being cared for by both parents as Merrill takes time out from the band.