2. Mike Posner
Like many other entertainers, Posner took to Twitter to express his condolences for the Sandy Hook victims. "Hey guys ... I wanted to do SOMETHING for the victims' families and I didn't really know what else to do," he tweeted. The singer/songwriter paid tribute with an original song called "Heaven," including a handwritten message that read "To the victims families: I hope this song will help just a tiny tiny bit to ease the pain of your loss." He ended his message with the song's chorus, "Maybe this will make sense in heaven.