"It's sonically complex, but with quite catchy, simple pop songs."
Being mates has given Fullbrook other insights into the album.
"The thing about it is I've heard the songs change throughout the time that Djeisan was working on them, he's gone through several realizations of this album and for me that's interesting.
"For me Cool Rainbows isn't just that album, it's also the other versions of the songs I've heard and grown to really love, and their live show, and how hard working the band is."
Fullbrook - on a plane to the UK around now for a three month jaunt - talks a lot about "soundscapes" and the "epic" qualities of the album, but has chosen one of its simplest songs to spotlight.
"I really love Pauly, which is the slowest saddest songs on the record so that says something about me I guess,' she laughs.
"I really like the sentiment of it. A guy talking to another of his guy friends... you know his songs are love songs but they're really sweetly executed and sincere and I don't find them at all cheesy or cloying which is quite a hard thing to pull off I think."
Cool Rainbows: Pauly
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