A man on a hunt for the "perfect" Christmas gift

A man is on the hunt for the "perfect" Christmas gift for his wife. He has looked high and low and has not found just the right gift. Time is getting short. It is Christmas Eve and the shops in town are starting to close. The man heads into the pet store; desperate:
Clerk: Hello sir, how can I help you?
Man: I need the perfect gift for my wife, what do you have?
C: I have just the gift! Here is Chet the parrot.
M: What is so great about Chet? He is just a parrot.
C: AH, you need to see what he can do...
So the clerk reaches behind the counter and gets a box of matches and lights one and holds it under one of Chet's feet. Chet starts singing Silent Night just like Bing Crosby!
M: WOW! That is really neat! What else can he do?
The clerk lights another match and holds it under Chet's other foot. The bird begins to sing Joy To The World just like Nat King Cole!!!
M: Amazing!!! I will take the bird!!!
The clerk puts the bird in a cage, covers it, and the man heads home with his gift...
Upon arriving home the man cannot wait until Christmas to give his wife he present. He goes into the family room and presents the gift to his wife.
Wife: What is that?
Man: Your present!
Wife: It is a parrot!
Man: But it is a special parrot... watch.
The man repeats the actions of the clerk in the store. Chet sings the carols just like in the store. The wife is not amused.
The wife grabs a match, lights it, and says, "what does he sing if I hold the match between his legs?".
The parrot begins to sing, "Chet's nuts roasting on an open fire..."