Her fans were jammed in for blocks & blocks in midtown Manhattan - and many of them camped out the night before - to see Ariana Grande perform on the "Today" Show. Watch:

Visit NBCNews.com for breaking news, world news, and news about the economy



Visit NBCNews.com for breaking news, world news, and news about the economy



Visit NBCNews.com for breaking news, world news, and news about the economy