The YUM! Brands (>> Yum! Brands, Inc.) subsidiary, which sells tacos and burritos, first opened a Japanese outlet in the 1980s but later closed it down.

Around 150 people waited in a line stretching out to the main street of Tokyo's busy Shibuya shopping district, with some said to have camped overnight to be the first to eat tacos.

Taco Bell said it was making its second attempt to conquer the Japanese market as Mexican food was becoming increasingly popular among the younger Japanese.

"Shibuya has so much energy, it's very youthful, and you know our brand is a very youthful brand," Melissa Lora, president of Taco Bell International, said.

"So we thought Shibuya would be the perfect area to introduce ourselves to the Tokyo market."

At 320 yen($2.67) for a taco and 500 yen ($4.2) for a burrito, prices are slightly higher than in the United States but in line with other fast-food menu prices in Japan.

Taco Bell's return to Japan comes as U.S. burger joints Shake Shack (>> Shake Shack Inc) and Carl's Jr. also plan to open restaurants in the country ahead of the Tokyo Olympics when both local and foreign visitor numbers are expected to increase.

(1 US dollar = 119.7700 Japanese yen)

(Reporting By Reuters Television Editing by Jeremy Gaunt)

Stocks treated in this article : Yum! Brands, Inc., Shake Shack Inc