Emma says to Baze that his perfect woman "looks like that chick from Roswell (1999)," referring to Shiri Appleby (Cate).
Shiri Appleby starred in Gavin DeGraw's video for his song "I Don't Want to Be," which was used as the theme song in One Tree Hill (2003), which is the show that guest characters Haley James-Scott and Mia Catalano come from.