Nicole Richie Makes Fun of Joel about Hilary

According to US Weekly, Nicole Richie likes to make fun of her boyfriend Joel Madden for dating Hilary Duff:

A source tells Us Weekly that Nicole Richie, 26, teases Joel Madden, 28, about his two-and-a-half-year relationship with singer-actress Hilary Duff, 20. She will ask if he’s going to watch Lizzie McGuire DVDs or listen to Hilary’s albums," says the source. "Joel tells her she’s being out of line."

A lot of people seem to think that Nicole is being mean to Hilary by saying these things, but I think she's probably just joking around and just says those things to get under Joel's skin.