Listen to Flop Parade Medley: Rhythmitis / Grace / There's A Flaw In My Flue / On A Rainy online. Flop Parade Medley: Rhythmitis / Grace / There's A Flaw In My Flue / On A Rainy is an English language song and is sung by Bing Crosby and His Hollywood Guests. Flop Parade Medley: Rhythmitis / Grace / There's A Flaw In My Flue / On A Rainy, from the album Bing Crosby And His Hollywood Guests, was released in the year 2005. The duration of the song is 10:46. Download English songs online from JioSaavn.