### Instruction: What is Bubble tea?
### Input: Bubble tea (also known as pearl milk tea, bubble milk tea, tapioca milk tea, boba tea, or boba; Chinese: 珍珠奶茶; pinyin: zhēnzhū nǎichá, 波霸奶茶; bōbà nǎichá) is a tea-based drink that originated in Taiwan in the early 1980s. Taiwanese immigrants brought it to the United States in the 1990s, initially in California through regions like Los Angeles County, but the drink has also spread to other countries where there is a large East Asian diaspora population.

Bubble tea most commonly consists of tea accompanied by chewy tapioca balls ("boba" or "pearls"), but it can be made with other toppings as well, such as grass jelly, aloe vera, red bean, or popping boba. It has many varieties and flavors, but the two most popular varieties are pearl black milk tea and pearl green milk tea ("pearl" signifies the tapioca balls at the bottom).
### Response: Boba tea is a very delicious drink originally from Taiwan. It started with cold milk tea with tapioca balls in the early 1990s. When the demand gets so popular, the boba tea store owner tries to be fancier by adding different toppings such as grass jelly, pudding cluster, aloe vera, red beans, gummy, mochi and fruit bites. In addition, many store owners become more creative by using different flavors of tea (black, green, oolong, jasmine and other fragrance tea)  as a drink base to outstand other competitors.