<a class="link" rel="nofollow" target="_blank" href="http://www.popsugar.com/celebrity/Microsoft-How-Old-App-Guesses-Celebrity-Ages-Met-Gala-37420483"></a><p>The How Old robot thinks Justin Bieber</a> looks 41, but what did it think about other stars at this year's Met Gala? We put Beyoncé, Kim Kardashian</a>, Diane Kruger</a>,
