Guitarist Benji Madden explained this song's meaning to Alternative Press: "This song was a really important one for me. The Good Charlotte fans know the story of my family from our past albums, but we've never been able to tell them about our happier times. This song is that story about my parents, Robin and Roger, who worked really hard to give us a great childhood."
The song's title alludes to the date Benji and his identical twin brother Joel were born - March 11, 1979.
A video was shot for the song in Tucson during Good Charlotte's June 2011 tour with Yellowcard and Runner Runner. "This video captures the vibe of our band these days perfectly," Joel Madden told AOL Music."
"(What's So Funny 'Bout) Peace, Love, and Understanding" was written by Nick Lowe in 1974. The original version with his group Brinsley Schwarz was kind of somber, but Elvis Costello made it a classic with his 1978 uptempo take.