Hilary Duff "Joel Will Never Cheat on Me"  2/11/06

Pop princess Hilary Duff is thrilled her rock star boyfriend Joel Madden has given up drinking, as she no longer fears he'll cheat on her.

The teen singer/actress admits her lover was once tempted by female fans, but she is confident his new sober lifestyle has put an end to his wild behavior.

She says, "Joel's so loyal. His dad left his family, and it has made him become the complete opposite.

"Plus, he doesn't drink anymore. I think there was (a groupie problem) when he was drinking.

"Now he's clean, so I don't worry about (his cheating)."