As the Gay and Lesbian Alliance Against Defamation plans a street protest against rapper Eminem outside the Grammy Awards this afternoon in Los Angeles, the target of their demonstration may be planning a kind of counterprotest of his own. According to a source close to Eminem, the rapper and gay rocker Elton John are planning to wear GLAAD T-shirts for their much-anticipated duet during the Grammys broadcast, which CBS will carry live beginning at 8 p.m. Eastern and 7 p.m. Central time. (The show will be tape-delayed for an 8 p.m. broadcast in the Pacific time zone, 7 p.m. in the Mountain time zone.) Whether the producers of the show will go along with the implicit dig at GLAAD was not known as of noon Pacific time today, but if Eminem and John have their way, the gay rights watchdog group may have more to talk about than just the duo's musical performance. GLAAD has been vocal for months in condemning Eminem's Grammy-nominated album, The Marshall Mathers LP, for its lyrical content (which includes descriptions of violence against gay men and lesbians), and the organization has also spoken out against John--who received a major GLAAD award in 2000--for agreeing to perform with the rapper during the Grammys show.