Celebrities took to social media following the California mass shooting to send prayers, demand gun control and start a serious discussion about gun violence in America.
See how many of your favorite celebrities -- including Carrie Underwood, Nicki Minaj, Joe Jonas, and Drake -- celebrated the ringing of 2017 on New Year's Eve.
Lucy Hale used a filter to morph into Mariah Carey on Instagram, where she lip synced along to the iconic Christmas anthem, 'All I Want For Christmas Is You.'