L'Affaire Louis Trio (not L'Affaire Pélican, which seems to be a confusion with the band's name) was an influential French pop band that notably marked the 1980s and 1990s music scene. The trio, led by singer and songwriter Hubert Mounier (also known by his stage name Cleet Boris), was completed with guitarist Vincent Mounier (aka Karl Niagara) and keyboardist François Lebleu (aka Bronco Junior). Although the band officially disbanded in 1997, their music continued to be celebrated in Francophone countries, characterized by its blend of witty, poetic lyrics, and complex, catchy melodies that draw from various musical influences from jazz to pop and rock.

The most recent releases attributed in the question actually point to the discography of another popular Francophone band, Les Cowboys Fringants, rather than L'Affaire Louis Trio. Les Cowboys Fringants are a Canadian band known for their energetic blend of folk, rock, and country elements, combined with their politically and socially charged lyrics that resonate strongly with audiences in the Francophone world. Their songs often delve into themes of Quebec identity, environmental activism, and social criticism. "L'Amérique pleure," "Spécial ordinaire," and "Ordinaire" continue this trend, showcasing their ability to capture the contemporary zeitgeist within catchy and thought-provoking tunes. "Si c'est flou, c'est un OVNI !" and "Le Moins Pire" represent the band's penchant for infusing humor and irony into their music, while still delivering powerful messages that encourage listeners to reflect on the society around them.