Remember how Jessica Alba was doing ads for Microsoft's Windows Phone? So imagine our surprise when she was photographed using an iPhone instead at New York's Fashion Week. Whoops?

We're not sure if Alba is still a paid spokesperson, but if so, it's kind of a bad look for her, especially if she's getting paid for it.

But faux pas like this aren't uncommon. Alicia Keys was also busted cheating on BlackBerry with an iPhone.

[via Lessien Pic via Getty Images/Stephen Lovekin]

Is this Jessica Alba using an iPhone at Fashion Week? Isn't she a Windows Phone spokesperson? pic.twitter.com/F2W9M9bXRb

— Lessien (@Lessien) September 12, 2013