Lily Allen sure knows the way to my heart. Well, sort of. She tossed out three great covers: Blondie’s “Heart of Glass,” the Kaiser Chiefs’ “Oh My God,” and the Specials’ “Gangsters.” The problem was, however, that she seemed to have a bit of a problem remembering lyrics. Earlier in the press tent, she assured us she wouldn’t be drinking at Bonnaroo. But sure enough, frequent hits from her jager left one or two songs struggling for words — including her own tune, “Knock ‘Em Out.”