Were, like, adults now!

says bassist and songwriter Pete Wentz, 38.

And part of being an adult means taking the time to get things right.

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Credit: Pamela Littkey

So they spent the extra months expanding their sonic palette.

We wanted to move the ball forward, Wentz says.

The great thing about the way people listen to music now is theres such disregard to genre.

I think this record is expansive in that way.

(The album as a whole, though, is less laser-chasing feline and morebaby-monkey-riding-a-pig, Wentz clarifies.)

In addition to Wentzs song descriptions, animals also show up in the bands recent videos and live shows.

Now theyre on tour with us theyre a bit like the old guys from the Muppets.

Weve been calling them Frosty and Royal Tea, but I dont actually know if thats their names.

Stay frosty is like a military term.

Its basically like, Stay cool but alert,' Wentz says.

Even if youre an anthropomorphic mystery creature.

Fall Out Boy are now on tour.