"Styx's Live Walrus Recording to Debut on iTunes; Styx's Version of "I Am the Walrus" Hits Top 10 on Classic Rock Charts".
2007년 12월 7일에 확인함.  “Styx's Live Walrus Recording to Debut on iTunes; Styx's Version of "I Am the Walrus" Hits Top 10 on Classic Rock Charts”. 《Encyclopedia.com》.