Possible Clues:

• -- marque, famous make of motor cars
• Large, in a fancy coffee shop
• Slightly larger than tall, at Starbucks
• Ariana ___ (fake Starbucks order)
• Ariana __, singer who saw, liked, wanted and got it?
• Large, in Laval
• 'Problem' singer Ariana
• Starbucks order size
• Frappuccino size
• Ariana with a four-octave vocal range