Katy Perry

Starred on 'One Tree Hill'?

7/27/2011 11:00 AM PDT BY Johnny Lopez
Here's a blonde Katy Perry in NYC last weekend (left) -- and former "One Tree Hill" star Hilarie Burton (right).

0727_katy_perry_burton

One of them had a child in 2010 with former "Grey's Anatomy" star Jeffrey Dean Morgan.

We're just sayin'.