Funnyman Donald Faison has laughed off reports his SCRUBS co-star Zach Braff is engaged to Mandy Moore, insisting he would be one of the first to know if the couple planned to wed.

Faison and Braff are such close pals, the Garden State film-maker has promised to tell Faison if he proposes to the stunning singer/actress.

Faison says, "Some tabloid said he was engaged to Mandy Moore, so yesterday I did a radio tour and a lot of these cats were asking me, 'Is it true?' I was like, 'No' - and then I called him. He was like, 'Dude! Do I not say you're my best friend? Don't you think I would have told you?' I was like, 'Aw, man, I'm sorry.'"