Beyonce arrived at LAX airport the other day in a cool gray leather jacket and a shiny purple metallic bag. But what intrigued me most was her tee. I had to investigate. It turns out, she was wearing Public Library's Samburu Hope Tee ($38). Besides the fact it has cool graphics, it benefits a non-profit organization, The Samburu Project, which works with communities in Northern Kenya to build wells and bring clean drinking water to the region. Very cool.