U2 tape a performance for the MTV/VH-1 React Now charity concert to raise money for Hurricane Katrina relief efforts. The performance is taped after their duet with Mary J. Blige for a separate charity concert, and will air a day later. The band play again inside an empty arena, though this performance includes the full Vertigo lighting production. Bono changes lyrics, singing "All you K-Marters / All you Americans" in place of the "daughters of Zion / Abraham sons" couplet. Bono also sports a new headband -- it says HELP on it, rather than the COEXIST logo.