When Stan calls Francine from the road, he says "Maybe he'll sing to me of greater things, of money, gold and diamond rings", which is paraphrasing the lyrics of My Morning Jacket's song "I Will Sing You Songs".
When Roger and Stan set off to meet the band they are dressed as the characters from the film 'Almost Famous.' The difference being that Roger called himself Abbey Road, whereas in the film, Kate Hudson's character was Penny Lane; both names being titles of Beatles songs.
When they're on the tour bus, the band calls their assistant monkey "Mahgeetah", which is the title of one of their songs.
Mike Barker wrote this episode after attending a concert of the band, wanting to raise awareness of them and trying to express how much he loved those guys and the experience they had given him and the rest of the audience at said concert. He also spoke about if the band had any input on their character designs, saying: "We gave the band customary consultation and they signed off on all of the artwork we ran by them
Stan's sales connection, Norman, his shirt translates phonetically as "Get Hi".