Tried my best to fit them all in, but I did cheat once at the end. Only 3 were abbreviated (United Kingdom, Democratic Republic of the Congo, and United Arab Emirates). And this time I double checked every country to make sure the flags and maps were correct :)
LYRICS:
United States, Canada, Mexico, Panama
Haiti, Jamaica, Peru
Republic Dominican, Cuba, The Vatican
Tonga, Bahamas, Nauru
San Marino, Colombia, Venezuela
Honduras, Guyana, and still
Guatemala, Bolivia, then Argentina
And Ecuador, Chile, Brazil
Costa Rica, Belize, Nicaragua, Barbados
UK, Trinidad and Tobago
Paraguay, Uruguay, Suriname
Tuvalu, Saint Lucia, Montenegro
Norway and Sweden and Iceland and Finland
And Germany, Azerbaijan
Switzerland, Austria, Czech Republic, Slovakia
Solomon Islands, Gabon
Poland, Romania, Yemen, Albania
Ireland, Russia, Oman
Bulgaria, Saudi Arabia, Hungary
Cyprus, Iraq, and Iran
Samoa, Serbia, Lebanon, Israel, Jordan
Myanmar, Kuwait, and Bahrain
The Netherlands, Luxembourg, Belgium, and Portugal
France, Georgia, Denmark, Ukraine
India, Pakistan, Qatar, Afghanistan
Thailand, Nepal, and Bhutan
Vanuatu, Cambodia, China, Mongolia
Saint Kitts and Nevis, Japan
Tajikistan, Laos, Belarus, Indonesia
The Philippines, Maldives, Taiwan
Papua New Guinea, Sri Lanka, New Zealand
Eritrea and Vietnam
Tunisia, Morocco, Uganda, Angola
Zimbabwe, Djibouti, Botswana
Eswatini, Zambia, Mozambique, Gambia
Guinea, Dominica, Ghana
Burundi, Lesotho, and Malawi, Togo
Slovenia, Turkmenistan
Niger, Nigeria, Chad, and Liberia
Egypt, Benin, South Sudan
Tanzania, Somalia, Kenya, and Mali
Sierra Leone, Singapore
Mauritius, Namibia, Senegal, Libya
Cameroon, El Salvador
Cape Verde, Burkina Faso, DRC
Kyrgyzstan and the Ivory Coast
Kazakhstan, Marshall Islands, UAE
Congo Republic, Comoros
South Korea, Armenia, Bangladesh, Latvia
Central African Republic, Syria
Andorra, Antigua and Barbuda
Bosnia and Herzegovina, Algeria
North Korea, Seychelles, Kiribati, Croatia
Brunei, Micronesia, Palau
Equatorial Guinea, Grenada, Moldova
Malaysia, Greece, Guinea-Bissau
Ethiopia, South Africa, Madagascar
Rwanda and Uzbekistan
Sao Tome and Principe, East Timor, Italy
Spain, Mauritania
Then Lithuania
Turkey, Estonia
North Macedonia
Monaco, Liechtenstein
Malta and Palestine
Fiji, Australia, Sudan
...Saint Vincent and the Grenadines