We know what Hollywood’s glitterati are doing for New Year’s Eve: celebrating the wedding of Bumble entrepreneur — and ­funnygirl — Erin Foster to Simon Tikhman.

Erin, the daughter of David Foster, wrote on Instagram late Thursday, “On our way to Nashville to get married!” She counts Kate Hudson and Jennifer Meyer among her best pals.

Erin got engaged to Tikhman in August, and neither wanted a long engagement. She held her bachelorette party in Aspen, Colo., earlier this month.

She’s been showing off a wealth of bridal gifts, including a silk negligee from her stepmother, Katharine McPhee, who joked that she forgave Erin for stealing her thunder after she married dad David in July.