Diplo, Zendaya, Tove Lo & Others Applaud Fearless Parkland Shooting Survivors at Town Hall

The survivors of the terrifying shooting at the Marjory Stoneman Douglas High School in Parkland, Fla. are using their tragedy to help spark change in this country's controversial gun laws. They, especially the students, are already making a difference that can inspire us all. Most recently, the students, parents and teachers put up a powerful fight during CNN's "Stand Up" town hall on Wednesday night.

Frank Guttenberg, whose 14-year-old daughter Jaime Guttenberg was one of the 17 victims killed in the shooting, was one of the biggest heroes of the night as he stood up to Florida Congressional Senator Marco Rubio. He called the senator and Donald Trump's comments regarding plans to tackle gun violence "pathetically weak." "Look at me and tell me. Guns were the factor in the hunting of our kids in this school this week. And look at me and tell me you accept it and you will work with us to do something about guns," Guttenberg asked the senator as the audience gave him a standing ovation.