The Spanish chef and humanitarian said he's 'distraught watching Ukraine under attack.'
Klitschko had already enlisted in Ukraine's reserve army, and his brother, fellow Hall of Fame boxer Vitali, is the mayor Kyiv.
The former couple was spotted at Justin Queso's in Los Angeles over the weekend.
Brian Hickerson must begin serving his sentence on May 7.
Check out Kaya's epic cake!
'I am prepared to do my part to make sure this man never hurts anyone again,' Panettiere said in a statement to ET.
The news comes five months after Hickerson was arrested in Wyoming for domestic battery.
The actress has made some of her private family photos public on the social media platform.
Hayden Panettiere's boyfriend, Brian Hickerson, has been arrested for domestic battery, ET can confirm.
Hayden Panettiere's boyfriend, Brian Hickerson, has been arrested for alleged domestic violence.
Hayden debuted a radical, new hairstyle on Twitter, her first post on social media in nearly a year.
The 30-year-old actress last tweeted in February.
Brian Hickerson was arrested on suspicion of domestic violence in May.
The two were recently spotted holding hands in New York City.
