Who Sang Why Can’t We Be Friends? Music in Commercials by da jack hayford - May 12, 2016April 29, 20230 Why Can't We Be Friends? "Why Can't We Be Friends" is a great old WAR song. Other great songs by WAR are LOW RIDER and CISCO KID. "Why Can't Be Friends" was recently used to promote the CNN show, United Shades of America, featuring "comedian and political gadfly W. Kamau Bell." It's