Betty White outs Cary Grant? Take that Newsweek!

So much for one Newsweek critic's lame theory that gay actors can't convincingly play straight.

According to a slip of "Hot in Cleveland" star Betty White's tongue on a recent segment with Joy Behar, the sexiest actor of all time -- Cary Grant -- was hiding throughout his career in the same closet as secretly gay Hollywood heartthrob Rock Hudson.

After mentioning Grant along with Hudson as someone everyone in Hollywood knew was gay, Betty immediately covers up her gaffe with an "I don't know. I never had him."

But we remain suspicious.