we all have to do better. >> lebron james leads nba stars in a challenge to the world's greatest athletes, taking on deadly gun violence. >> it has to stop. enough. enough is enough. >> the dramatic moment on one of sports' biggest nights. >>> on high alert. nasty storms from kansas to new york. this tornado touching down in missouri and flash floods in pennsylvania overnight, emergency rescues, animals struggling to escape rushing waters now more flooding and hail on the way. ♪ >>> taylor swift's ex calling her out publicly after she reveals she wrote part of his song. calvin harris says she's trying to bury him. will she be able to shake it off? >>> and good morning, america. what a night at the espys last night. always so much fun. always a huge spectacle. last night something unexpected. something very powerful.