"Let it Go" is a 1981 song by English rock band Def Leppard from their multi-platinum album High 'n' Dry. It was one of two singles from the album, and reached number 34 on the US Mainstream Rock charts. It was originally titled "When the Rain Falls" with different lyrics as played at New Theatre in Oxford in 1980. The 7" single runs about 30 seconds shorter than the album version; no lyrics are removed, but the opening guitar intro and the other guitar solos are shortened slightly.