Rihanna — The Midnight Visit to Ashton Kutcher’s Home

 Rihanna — and her security team — stopped by Ashton Kutcher“s swanky L.A. house for a little late night visit Wednesday.

According to the photographer, the “Birthday Cake” singer got to Ashton”s home right around midnight … and didn”t leave “til roughly 4 AM.

As we previously reported, Justin Bieber recently checked out Ashton”s $10 million bachelor pad on his high-end real estate hunt … but we”re guessin” Rihanna wasn”t there for an open house.

So far, no comment from Rihanna”s rep.