"So Tell Me Why" is a single by American Hard rock band Poison, from their 1991 Swallow This Live album. The song peaked at number 25 on the UK Singles chartand was one of four new studio tracks on the live hits album, the others being "Only Time Will Tell", "'No More Lookin' Back (Poison Jazz)" and "Souls On Fire". This was the last single with C.C. DeVille until 2000's Power to the People.