If you want to know what my summer jam of 2015 is, I would not be able to pick just one. Instead, I'd tell you to check out the 'Feeling Happy' Stay See Summer Mix 2015 on YouTube. It has the perfect mix of melodic house, vocal house, disco with a little Notorious B.I.G thrown in there to keep me grooving all summer long. When I'm drawing or painting, I just throw this mix on repeat and I'm good to go. Give it a listen! It'll make you want to hit the beach.