Wiki isn't a reliable source. Austin metioned in an interview he was on it.
"Months after Roush's inception, bassist, Jaxin Hall left the group on August 23, 2010. Hall considerably explained that the reasons for this decision were made to concentrate more on his personal life as well as his clothing brand, Love Before Glory. Dane Poppin of A Static Lullaby substituted as a bassist for Of Mice & Men's then upcoming tour dates after Hall's departure. The group were included in the Punk Goes... compilation, Punk Goes Pop 3, covering the R&B song, "Blame It" by Jamie Foxx with Poppin on bass and is the only recording by the band to feature Roush's vocals."
RIGHT THERE!
RIGHT THERE!