The following selections were found in iTunes for
Art Pepper "What Is This Thing Called Love":

Title	Artist	Album	PURCHASE
What Is This Thing Called Love	Art Pepper	Modern Art: The Complete Art Pepper Aladdin Record
What Is This Thing Called Love?	Art Pepper	The Capitol Vaults Jazz Series: Art Pepper
What Is This Thing Called Love?	Art Pepper	The Capitol Vaults Jazz Series: Art Pepper
What Is This Thing Called Love	Art Pepper	Among Friends
What Is This Thing Called Love	Mel Tormé	Swings Shubert Alley / Back in Town (feat. Art Pepper & Marty Paich)
What Is This Thing Called Love	Art Pepper & Russ Freeman	Pepper Returns (Giants of Jazz)