Disregarding their debut album, which is ok, but it seems really lazy.
Today Fitz & The Tantrums released their follow up to their debut "More Than Just A Dream," and they simply just left an album title out.

Why not call it Hand Clap to fit the artwork?
What if people are searching for a particular album and there is no album title? Can an artist release more than one "self-titled" album or is that forbidden?
Britney Spears kind of did it by titling her third follow-up as "Britney" and then her recent "Britney Jean."