Lip Sync to the Rescue is an interactive countdown special where viewers vote for their favorite video of performances featuring first responders channeling their inner pop stars and lip-syncing to hit music, a trend that began with the #LipSyncChallenge. The winner will be announced LIVE during the broadcast.#LipSyncChallenge began as a fun way for police, sheriff, fire department, and EMTs to engage with their communities by creating lip sync music videos and challenging other departments to do the same. Fans rallied around their favorite videos in the first round of Lip Sync to the Rescue voting on CBS.com, where you can still check out 30 clips from first responders tackling the Lip Sync challenge!