Big Bad World is the fifth studio album by American rock band Plain White T's. It was released on September 23, 2008, by Hollywood Records. The creation of this album was a follow-up album to Every Second Counts in hopes of breaking free from being the "Hey There Delilah" Band. To promote the album, the Plain White T's launched a few webisodes, which together form the series Meet Me in California. The majority of the album was written while on the road, in planes, in hotels, and on buses.

The Plain White T's are an American rock band from Lombard, Illinois, formed in 1997 by high school friends Tom Higgenson, Dave Tirio, and Ken Fletcher, and joined a short time later by Steve Mast. The group had a mostly underground following in Chicago basements, clubs, and bars in its early years.