A. Poison ivy, poison oak, and poison sumac are plants that contain an irritating, oily sap called urushiol. Urushiol triggers an allergic reaction when it comes into contact with skin, resulting in an itchy rash, which can appear within hours of exposure or up to several days later.
Vienna  is a song from Billy Joel 's 1977 album The Stranger, released as the B-side to his  She's Always a Woman  single. In a July 2008 New York Times article, Joel cited this as one of his two favorite songs, along with Summer, Highland Falls.
Kenny Rogers included it on his multi-million selling Love Songs album in 1997. The vocals are commonly misattributed to Louis Armstrong. The song is used as the theme of the British comedy TV series As Time Goes By. The song was performed by American Idol finalist John Stevens (singer) during season 3. KISS drummer Peter Criss sang the intro to this track as a hidden bonus track on his 1980 solo album Out of Control.