Sophia Bush Sends Sweet Birthday Message to 'One Tree Hill' Co-Star Hilarie Burton

Sophia Bush and Hilarie Burton are total BFF goals! The 34-year-old former Chicago PD star took to Instagram to share an adorable birthday message to her former One Tree Hill co-star. PHOTOS: Check out the latest pics of Sophia Bush Happiest Birthday to my sweet @hilarieburton. Sister! We’ve been through a lot,” Sophia wrote. “It’s