Spears previously responded to Federline's upcoming memoir with a statement that said 'all she cares about are her kids'
NEED TO KNOW
Kevin Federline claims Britney Spears called Justin Timberlake the night before their wedding in 2004
He claims that she "wanted to make sure that everything is done" between them
Federline is set to release his memoir You Thought You Kn... [3885 chars]