I remeber a video on YouTube.  A band is walking on a sidewalk while playing an acoustic version of some song of theirs. There's a guy who is the lead singer and plays the guitar, there's a woman doing the backing vocals and playing an empty tambourine,  there's also one guy playing the trumpet (or any other brass instrument that may sound similar). The video lives rent-free in my head, but the details are fading. I don't remeber the lyrics. They kinda walk and dance to the song. From what I can recall, they sounded indie-rock. I'm sorry if it's too vague. The chorus is the guy singing a short sentence followed by the woman singing another right after. He says something, and she goes something like "dee da doooooo" (since I can't remember what they're saying) after. They do it four times,  I think. I'm laughing while typing this, but that's the best I can do. 😂

 I tried to remember some small parts of the song and record them. I hope it helps. 😂

https://voca.ro/1fHN7hq4pQ9y

Edit: It's  not any official music video with playback. It's 100% live/acoustic. It's one-shot. The camera follows them while they walking on the sidewalk from right to left, like in a 2d game. There's the band going this way <---, and they are singing, playing, walking and dancing in line. There's only four of them (maybe 5? I don't remember it well). The girl has short hair. She's the one playing the tambourine and singing only during the chorus. I don't think it's any "a take away show" live performance since the band doesnt seem to be very famous. I might be known, but not cold play or the lumineers level. (Not beirut, not walk off the earth,  not of monsters and men, not arcade fire) 

Does anybody know this one?