The America's Got Talent star's 17-year-old daughter Hayley discovered her father "extremely drunk" and called her mother Pamela, whose friend called emergency services to Hasselhoff's home in Encino, California, according to TMZ.com.
Paramedics arrived at the family property and took the star to hospital.
Hasselhoff was hospitalized back in May with alleged alcohol poisoning, although his spokesperson downplayed the reports, insisting the incident was not serious.
The 57-year-old's alcohol problem was exposed in 2007 when home-video footage of him in a drunken state leaked onto the Internet. He was later checked into a rehabilitation facility in a bid to kick his alcohol demons.
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