Airhead
by Meg Cabot
Emerson "Em" Watts accompanies her sister, Frida, and her best friend, Christopher, to a Stark Megastore opening in SoHo, which is attended by teen supermodel Nikki Howard and British musician Gabriel Luna, who Frida hopes to meet. Protesters attend the event because the Stark Megastore has replaced a locally owned grocery store, and one of the protesters shoots a plasma screen with a paintball gun, snapping the wires. Em saves her sister from being hit by the falling plasma screen but takes the hit herself. At almost the same moment, Nikki faints.
A month later, Em finds herself in the hospital, trying to recall what had happened. She finds out she is in Nikki's body when she is kidnapped by Lulu Collins, Nikki's roommate, and Brandon Stark, her on-again, off-again boyfriend and heir to the Stark fortune. Em tries to remember the events that led to her current state and finds out that not only did she die during the accident, Nikki had collapsed from a brain aneurysm at the same time. In an effort to save Em, her parents agreed to a controversial brain transplant offered by Stark Industries, transplanting her brain into Nikki's body, on the condition that Em continues Nikki's career as the face of Stark Industries; the penalty for breaching this contract would be two million dollars.
The novel ends with Em bringing Lulu to her family's house for dinner, Em learns that Lulu doesn't have a family and spends most of her time drinking and partying. When asked by Lulu how she knows her family, Em answers, "I don't know where to begin".