This is quite an issue for me with the work I do for a US record company.
They (I always assumed, correctly) use a singular for stuff done by a band. However, when the band is called "The Oak Ridge Boys" it just sounds wrong that they say "The Oak Ridge Boys has released its new album" so I change it to "The Oak Ridge Boys have released their new album". Even with bands with not-obvious names, such as Leeland, I find myself using the plural as I know there are four members in that band - "Leeland have recorded their latest single" rather than "Leeland has recorded its latest single".