They say that since everyone is always complaining about mondays and stuff cause it's a new day and the start of something new, that they wanted people to get excited about it! and since they were a brand new band and they wanted people to get excited about them and their start to something new, the name Hey Monday worked.
the note from homecoming
Cassadee Pope
Hey Monday was created in 2007.
Hey Monday's new album that is being released in mid-June is titled "Beneath it All."
Hey Monday was formed in 2007 in Destin, Florida
The Girl From Hey Monday Is Cassadee Pope.
Cassadee Blake Pope
the lead singer of the band Hey Monday is Cassadee Pope
Lead Singer, Cassadee Pope, came up with the name because "We liked the name Hey Monday because it's very contradicting, most people don't really say they're happy about a Monday, they view it like it's the first day of the rest of their week, but Monday can also just be a new beginning…". Hope this helps you understand ^_^
Hey Monday has a full-length album Hold On Tight and an EP Beneath It All.
"Blake" (technically Hey Monday before the name change), but I believe the real answer that you're looking for is "The Aubrey Drive" which was his band before any involvement with Cassadee Pope.
Alternative