The O.C. - Season 3, Episode 4: Soundtracks

Marissa and Ryan find "their song" on the radio

Summer tells Seth she has something important to tell him.

Seth calls Ryan from the dance and counsels him not to worry about Marissa.

Marissa and her new friends walk into the school dance at Newport Union.

Marissa goes to her new school for the first time.

Seth and Summer enter the Harbor High dance, and Taylor takes credit for how well it turned out.

Summer is at the dance when she sees Taylor sneak off into the hallway.