just 18 years old and already with millions of fans, and his faithful mahomies have filled our plaza for a concert on monday, may 26th, 2014. from nbc news, this is today, with matt lauer and savannah guthrie, live from studio 1-a in rockefeller plaza. and good morning. welcome to today on this memorial day monday morning. i m natalie morales. and i m willie geist along with tamron hall, dylan dreyer is with us. matt, savannah, and al all have the morning off. let s keep track of how many times we can say mahomies. that s austin mahone live practicing right now, rehearsing, getting ready for what would be a massive concert outside on our plaza. huge crowd outside. just a couple of young girls. i love the brave dads wearing the t-shirts i m here with my daughter. sure you are. and to clarify it s mahomies. if you re a fan, you know who you are. we will get to that concert coming up in the next hour. but first, today s top story. what we re now learning