Technical conventions:

The lip syncing has been done very well and looks like the performer is actually singing. The video all together fits well with the genre and lyrics of the song.  There was also different shots and distances used throughout the video.

Narrative:Performance ratio:

I would say the ratio of narrative to performance is about 50:50 as there is an equal amount of both used and spread out in the video.

Star representation:

The star has been shown as a typical teenager in a relationship having fun and her colourful clothing helps to show this as well as her acting/singing.

Star image and artist:

The video has different transitions and edits used as well as distances and different paces of shots. The conveys the star image in a good way as the different shot compliment her well. It also conveys the artist as a young artist with the different clothing and story portrayed.