"Boulevard of Broken Songs" (also known as "Wonderwall of Broken Songs" or "Wonderwall of Broken Dreams") is a popular mash-up mixed by San Francisco, California, DJ and producer Party Ben in late 2004. The mix consisted of elements from Green Day's "Boulevard of Broken Dreams", Oasis's "Wonderwall", Travis's "Writing to Reach You", and Eminem's "Sing for the Moment", which itself samples Aerosmith's "Dream On". "Sing for the Moment" was used solely because Party Ben did not have "Dream On" on hand and was on deadline for his "Sixx Mixx" radio show. Later versions (see below) used Aerosmith's original. This song is also a tribute to the people who lost their lives in the September 11 attacks.