Britney Spears and Kevin Federline share their love story in their first joint TV interview, while the Backstreet Boys dish on their epic return, new music, and what’s next.

ELLEN reveals her new set with her first in-studio guest of the fourth season and has the 1st EXCLUSIVE talk show interview with KEVIN FEDERLINE. Ellen chats with Kevin about his wife Britney Spears, son Sean Preston and their upcoming addition to the family. Plus, Kevin performs his newest single, "Lose Control," from his upcoming CD, "Playing with Fire."