Tonight's American Music Awards  featured some amazing performances, but apparently the floor was a bit slippery! Adam Lambert  lost his footing during "For Your Entertainment," but after a quick roll over he was back on his feet and didn't miss a beat. Jennifer Lopez  also took a tumble after climbing up her man stairs singing "Louboutins." Check out the videos of both the falls — and thankfully they are both ok! — so whose was more dramatic, Adam Lambert or Jennifer Lopez?