If the listeners want to know more about the band, they will notice their earlier music too.. They just had a huge hit with their "swing album", so its pretty common that new fans have only heard those top 10 hits of them. Much to discover with this band... Also some brilliant songs in their newest album!
The saddest thing about this band, I think, is that everyone assumes they only play swing music. Pick up anything outside their "The Swingin' Hits of..." album and you'll see how multifaceted they truly are.
As a follow up to previous shouts...I grew up listening to both bands, BBVD and CPD. Due to the language, I listen to BBVD, RCR and others a lot more now that I am older. There is no need for that type of language IMO.