You Thought You Knew
| Author | Kevin Federline |
|---|---|
| Language | English |
| Genre | Memoir |
| Publisher | Listenin |
Publication date | October 21, 2025 |
| Publication place | United States |
| Pages | 228 |
| ISBN | 9798999612502 |
You Thought You Knew is a 2025 memoir by American dancer and entertainer Kevin Federline, published by Listenin on October 21, 2025. The book recounts Federline's early life and dance career and his relationship with Britney Spears, drawing extensive coverage for his allegations against Spears and for Spears' public response.