Timothy B. Schmit sings lead on most of this song, but Don Henley sings the bridge.
Don Henley told Billboard magazine in a Q and A on October 12 2007: "'Do Something' is an interesting song because it starts out like a love song, a boy/girl song, but then it takes on larger implications. And that line ("How did we get on this road we are traveling?") could pertain to a relationship between a man and a woman or it could be a statement about the country as a whole."
"(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.