Billllie has dropped a new audio teaser for 'Snowy Night.'

On December 13 at midnight KST, the rookie girl group revealed a new teaser for their upcoming comeback. Based on this audio teaser, fans can expect a highly perfected new song this holiday season with a twist. 

Meanwhile, this comeback marks the group's first comeback as a 7-member group. Billlie's upcoming digital single 'Snowy Night' is set to drop on December 14 at 6 PM KST.