Records show Jani (JAY'-nee) Lane was arrested late Wednesday in the San Fernando Valley. Police say the 45-year-old singer posted $30,000 bail on Thursday.
No other details about his arrest were released Thursday afternoon.
A call to his management was not immediately returned Thursday.
Lane has been the off-and-on frontman for Warrant, which shot to fame in 1990 for its album and iconic music video "Cherry Pie."
The arrest was first reported by celebrity Web site TMZ.