 <translate> I got a question for you: "Bad" is a song by rock band U2 and the seventh track from their 1984 album, The Unforgettable Fire. A song about heroin addiction, it is considered a fan favourite, and is one of U2's most frequently performed songs in concert.

Answer this question: what is the song bad about by u2?
Let's think first: <yor> Mo ní ìbéèrè kan fún yín: "Bad" jẹ́ orin tí ẹgbẹ́ olórin rock U2 kọ, ó sì jẹ́ orin keje nínú àwo orin wọn ti ọdún 1984, The Unforgettable Fire. Orin kan nipa afẹsodi heroin, o jẹ ayanfẹ ayanfẹ, ati pe o jẹ ọkan ninu awọn orin U2 ti a ṣe ni igbagbogbo ni ere orin.  Dáhùn ìbéèrè yìí: kí ni orin tí U2 kọ kò dáa nípa rẹ? Ẹ jẹ́ ká kọ́kọ́ ronú: 