Can't Stop This Thing We've Started

S4 E4: Peyton introduces hip-hop sensation Lupe Fiasco at the nightclub Tric, while rumours that Brooke is pregnant run rampant. Still dealing with the car accident, Nathan buys a motorcycle, despite Haley's reservations. Meanwhile, Lucas clashes with Derek, a newcomer who is very interested in Peyton, and Deb double-crosses Karen. Also, Rachel poses for `Maxim' magazine.