Britney Spears’ ex Kevin Federline is sounding the alarm, warning that something bad will happen to the pop star if she doesn’t get the help he thinks she needs.

In his new memoir, You Thought You Knew, Federline wrote about his ex-wife’s concerning behavior. He shared that he feared her “situation” was “racing toward something irreversible.”

Federline was married to Spears from 2004 to 2007. The former couple shares two sons, Sean and Jayden.

The DJ claimed in his memoir that his sons would tell him all the disturbing behavior that Spears would display. He stated that the boys told him they would sometimes wake up in the middle of the night to find the pop star standing at their bedroom doorway, holding a knife as she watched them sleep.

“It’s become impossible to pretend everything’s

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