려고 가져오다

brought it to do X

-(으)려고 states why the thing was brought and 가져오다 is the bringing. Nearly every line is a presenter introducing a prop or a song: 가방을 보여드리려고 가져왔거든요 'I've brought my bag to show you', 여러분들한테 들려드리려고 가져와 봤고요 'I brought this to play for you'. It is the standard opening move for whatever is about to be shown on camera.

Register: video presenting, polite