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As evidenced by their appearance on Wednesday's Ellen, the stars of Grown Ups 2 are clearly in no rush to, well, grow up.

Not that we're complaining.

After all, what fun would it be if Adam Sandler, Chris Rock, Salma Hayek, Maya Rudolph, David Spade and Kevin James decided to get all serious on us, right?

Sure enough, the six costars left their maturity at the door to chat with Ellen DeGeneres about everything from who improvises the most to who has the hardest time keeping a straight face while filming.

Check out the clip above and see if you can keep a straight face.

Meanwhile, Grown Ups 2 hits theaters on July 12.