Trinidad and Tobago–British relations are foreign relations between Trinidad and Tobago and the United Kingdom.
 Trinidad and Tobago has a high commission in London.
 The United Kingdom has a high commission in Port of Spain.
 Both countries are full members of the Commonwealth of Nations.
 Since the independence of Trinidad & Tobago in 1962, relations between the two countries have been mostly friendly and there are many areas in which both Trinidad and Tobago and the UK seek stronger ties for mutual benefit.
 There are also strong cultural and social ties between the two nations.
 In Trinidad and Tobago, English is one of the official languages, and Cricket is among the most popular sports.
 In the UK, Caribbean Carnival is hugely popular.
A euro calculator is a very popular type of calculator in European countries (see eurozone) that adopted the euro as their official monetary unit.
 It functions like any other normal calculator, but it also includes a special function which allows one to convert a value expressed in the previously official unit (the peseta in Spain, for example) to the new value in euros, or vice versa.
 Its use became very popular within the population and commerce of these countries especially during the first few months after adopting the euro.
Gallery Rifle Shooting or Gallery Rifle and Pistol shooting is a popular shooting sport throughout the world.
 In countries such as the UK, Ireland, Germany, South Africa and Australia national and international competitions are regularly undertaken.
 The discipline commonly uses rifles shot at short and medium distances chambered for traditional pistol calibers such as .22 Long Rifle, .38 and .357 calibers, .44 and .45.
 It is popular in countries where traditional pistol shooting difficult or not possible.
 In the UK Long Barreled Pistols (LBPs)and Long Barreled Revolvers (LBRs) are also part of the overall discipline.
Masoud (also spelled Masuod, Massood, Massoud, Masood, Mas'ud, Masud, Messaoud, Mesud or Mesut, "Mas‘ūd" , Persian: مسعود خوانده شود:مسود‎ ‎ , Arabic: مسعود اِقرا:مَس عَود‎ ‎ , is a given name and surname in many countries, meaning "fortunate", "prosperous", or "happy".
 Experts believe that the origin of this name comes from Persian as pronunced "Masöd" or Arabic as pronunced "Mass'Uöd".
 It is a very popular given name in Iran, Turkey, Tajikistan and Ozbekistan and is also commonly used as a popular given name and even surname in Arabic speaking countries, Afghanistan, and Pakistan.
The discography of Swedish recording artist Amy Deasismont, consists of five studio albums, one compilation album, eighteen official singles and counting.
 Singer became popular in 2005, when she released her platinum-certificated single "What's In It for Me".
 The song is Diamond's biggest hit to date remaining in the top ten in Sweden, Denmark, Norway and Poland. "
This Is Me Now", singer's first studio album was released after huge success of "What's In It for Me" in 2005 in several European countries - it gained popular in Scandinavian countries being certificated as Platinum plate by International Federation of the Phonographic Industry in Sweden.
 Next albums and singles were not as popular as debut releases gaining currency only in Diamond's homeland.
"Trizonesien-Song" ('Trizonesia Song') is a humorous German Carnival song written by in 1948.
 It took on the role of a frivolous national anthem substitute for West Germany at a time when there was no official anthem.
 The song is a self-deprecating, ironic statement of the three western zones' unsolved constitutional status while the three powers, (the United States, the United Kingdom and France), occupied the west of Germany.
Olivier salad (Russian: салат Оливье "Salat Olivye") is a traditional salad dish in Russian cuisine, which is also popular in many other European countries, Iran, Israel, Mongolia and also throughout Latin America.
 In different modern recipes, it is usually made with diced boiled potatoes, carrots, brined dill pickles, green peas, eggs, celeriac, onions, diced boiled chicken (or sometimes ham or bologna sausage), tart apples, with salt, pepper, and mustard added to enhance flavor, dressed with mayonnaise.
 In many countries, the dish is commonly referred to as Russian salad, although this term can connote vinegret .
 A variation called Stolichny salad (Russian: салат столичный , "capital city salad") exists, and is also popular in the Russian cuisine.
Milica (Serbian Cyrillic: Милица; pronounced Millitsa) is a feminine name popular in Slavic countries.
 It is derived from the Slavic word element "mil(a)", meaning "kind" and "dear", with the diminutive suffix "-itsa".
 The name was used for a number of queens and princesses, including Princess Milica of Serbia, wife of Lazar of Serbia, who is honored as a saint in the Serbian Orthodox Church.
 Milica has been the most popular name for girls born in Serbia since 1991, and is overall the most common female given name in the country.
 The name is occasionally given the phonetic spelling "Militza" in English speaking countries.
 The name of Princess Milica of Montenegro was often translated as Militza in English language publications.
A variety of customs and traditions are associated with Carnival celebrations in the German-speaking countries of Germany, Switzerland and Austria.
 They can vary considerably from country to country, but also from one small region to another.
 This is reflected in the various names given to these festivities occurring before Lent.
A full breakfast is a breakfast meal that typically includes bacon, sausages, eggs, other cooked foods and a beverage such as coffee or tea.
 It comes in different variants and is referred to by different names depending on the area; it is colloquially known as a “fry up” in all areas, however.
 It is usually referred to as a "full English breakfast" in England (often shortened to "full English") and, therefore, as a "full Irish", "full Scottish", "full Welsh", and the "Ulster fry" in the Republic of Ireland, Scotland, Wales, and Northern Ireland, respectively.
 It is especially popular in the British Isles, to the extent that many cafés and pubs offer the meal at any time of day as an "all-day breakfast".
 It is also popular in other English-speaking countries, particularly countries that were a part of the British Empire.
 Long-established in British culture, about a fifth of British tourists eat a full English breakfast while on holiday overseas.

Question: In what countries is the Trizonesien-Song popular?
Answer: Germany, Switzerland and Austria