"Have You Ever Needed Someone So Bad" is a song by English hard rock band Def Leppard from their fifth studio album, Adrenalize (1992). In the United States, the song reached number seven on the Album Rock Tracks charts and number 12 on the Billboard Hot 100, making the song the most successful single from the album in the U.S. The Acoustic Hippies from Hell, credited on the B-side tracks, was the name used by Def Leppard and the Hothouse Flowers performing together. The song was performed extensively during the Adrenalize and Slang tours but rarely after, most recently being done acoustically during the band's 2019 Vegas residency, and the 2022 Stadium Tour.