Eminem 's family is growing a little bigger ... because he's going to be a grandad, again! The Grammy-winner's eldest daughter Alaina , 32, announced Sunday she's expecting her first baby with husband Matt Moeller . She posted, "THE BEST OF YOU + ME. For months, I've carried a tiny heartbeat inside me, one that has already changed mine in every possible way. There's something indescribable about knowing there's a little life growing, dreaming, and becoming, all while you go about your day,