The couple began dating early last year (09) after Hewitt ended her relationship with former fiance Ross McCall.
Hewitt was forced to deny persistent rumours of a split in October (09), amid allegations Kennedy was still in love with his ex-girlfriend, Shannon Funk, Britney Spears’ former assistant.
At the time she said, “I’m not going to lie – it’s not annoying, it’s hurtful. It’s really hurtful that people say that.”
But now the pair has decided to go their separate ways, a representative tells People.com. No further information was available as WENN went to press.