SINGAPORE - A new A&W flagship restaurant will open in Singapore, probably in the second half of next year.

Famous for its root beer floats, Coney dogs and curly fries, the fast food chain actually opened its first outlet here in 1968, but exited the Singapore market in 2003 because of global losses.

Here's a look at five other fast food chains which have come and gone.

1. Wendy's

American fast food chain Wendy's, known for its unique fast food menu, took its final bow in April 2015 - but that was not the first time the chain came and left our shores.

Serving signature items such as all-beef chilli, cheeseburgers and milkshakes, Wendy's first opened in Singapore in the 1980s. With outlets in Far East Plaza and Parkway Parade, it closed down soon after.

The chain made a brief comeback in 2009, with its first outlet at the Lau Pa Sat Festival Market. By 2012, 12 outlets were opened across the island.

In 2015, however, the last Wendy's outlet at National University of Singapore (NUS) U-Town announced that it would be "serving her last burgers on 30th of April 2015".

2. Denny's

Known for being a 24-hour haunt serving diner-style specialties, Denny's officially closed for business in Singapore in March 2002.

The chain, which offered dishes such as the Grand Slam breakfast comprising eggs, bacon, pancakes, and sausages, closed down after 16 years.

In that time, it opened and closed around 12 outlets in places such as Holland Village, Shaw Towers, and Marine Parade.

3. Hardee's

A sister chain of popular fast-food restaurant Carl's Jr., Hardee's first opened in Singapore in 1984. It was available in three places - International Building, Parkway Parade and Holland Village - serving fast food staples such as burgers, fried chicken, and biscuits.

At the time, its offerings of fish, beef, and chicken on their menu made it stand out against other fast food competitors.

Yet by 1988, only one out of the three Hardee's outlets remained in Singapore, and the chain closed down for good soon after.

4. Taco Bell

Tex-Mex cuisine continues to be a hit in the United States, but one of its most popular purveyors did not last locally. Taco Bell, which opened an outlet in the former Funan DigitaLife Mall in 1999, eventually closed in 2008. The outlet was also combined with KFC and Pizza Hut.

5. Chuck E. Cheese

A popular restaurant for children in the US, Chuck E. Cheese made its debut in Singapore in the 1980s, opening at Parkway Parade.

As its name suggests, the chain's offerings were largely centred on cheese: cheese sandwiches, pizza, and spaghetti were mainstays on the menu. The store also featured a playroom for children.

Sources: Popspoken, Business Times