The following selections were found in iTunes for
Louis Prima "When You're Smiling":

Title	Artist	Album	PURCHASE
When You're Smiling / The Sheik of Araby	Louis Prima	Capitol Collectors Series: Louis Prima
Medley: When You're Smiling (The Whole World Smiles With You) / The Sheik of Araby [1999 Digital Remaster]	Louis Prima	Jump, Jive An' Wail: The Essential Louis Prima
When You're Smiling / The Sheik of Araby	Keely Smith & Louis Prima	Ultra-Lounge (Wild, Cool & Swingin') Artist Collection: Louis Prima & Keely Smith
When You're Smiling/The Sheik of Araby	Louis Prima, Keely Smith & Sam Butera & The Witnesses	The Call of the Wildest
When You're Smiling (The Whole World Smiles With You)	Louis Prima	From Heaven
When You're Smiling	Louis Prima	The 1950's Compilation Album, Vol. 35