'Real Housewives,' Maria Shriver, Joan Rivers and more tweet about Pope

Like many other people, celebrities took to Twitter on Wednesday to comment on the election of a new Pope in Vatican City.

As thousands piled into St. Peter's Square, in Italy, to welcome Pope Francis, some celebrities posted seriously about the historical moment, while others --of course-- couldn't resist the opportunity to crack a few jokes.

Here's what some big-name celebs had to say about the new Pope: