When singing U2’s anthem “Oneâ€ in front of Bono it’s best to know the lyrics. Miley Cyrus definitely didn’t as she took the Carnegie Hall stage to close out a Dec. 1 concert celebrating the ONE and (RED) organizations. “You gotta help me. Nothing’s there,â€ she said to Bono when the monitor went blank. A witness says the U2 frontman looked peeved but stepped in to give Miley a background lyric and take over the performance along with the audience, who knew every word. Earlier in the evening, Miley had plugged in her cell phone onstage, saying she had to call up the lyrics to her own new song. Just being Miley!