Naughty or not, it is their day.The two pandas, Tuan-tuan and Yuan-yuan, who have been in Taiwan for a year now, have been getting special treatments at the Taipei City Zoo. Let's take a look at how the duo is spending their birthdays here on CTS.

Tuan-tuan and Yuan-yuan, the two pandas from China have just turned 6 years old. In celebrating for their special day this past Sunday, custom-made cakes were prepared for each panda at the Taipei City Zoo.

Yuan-yuan goes for the sugar cane made candle right off the bat, while Tuan-tuan could care less for the sweets and completely messes up his cake.

His playful behavior got the crowd laughing, and this family from Kaohsiung sure got their money's worth by catching that scene.

Tuan-tuan and Yuan-yuan have been moved to the island for more than a year now, and have roped in close to 2 million visitors total.

Regardless of their immense popularity, there has been a decline in tourists recently.

According to zoo records, about 6,000 people check out the pandas everyday compared to the past 40,000 visitors at one point in time.

But on the bright side, because of the decrease, panda lovers can now enjoy more quality time with these cuddly furry black and white creatures.