U2 does a cover of "This Is" during a benefit concert raising money for Aslan lead singer Christy Dignam, who's suffering from cancer. The concert happens tonight in Dublin, but U2 appears via video from Electric Lady Studios in New York City. It's strongly suspected that U2 pre-recorded its performance weeks ago, while the band was still at Electric Lady working on new songs. Since an exact date isn't known, we'll list the performance in conjunction with the live event in Dublin.