In a few scenes he's driving around in a very carefree way with a nice blonde who is the only one bothered by the extreme sunshine. She wears sunglasses. Her hair is blowing around. They look like they are in California. Maybe on the same road that Katy Perry was for "Teenage Dream". Very similar videos.
Mike Posner - Please Don't Go Sunglasses
The sunglasses she is wearing are Ray-Ban 3025 sunglasses. They make young girls look bad-ass, that's why they all wear them.
Get yourself a pair below (more colors available):
