DuJour Features OLSSON DuJour featured OLSSON's killer new single "Some Summertime (feat. GRANT)" in their new music roundup! 5. “Some Summertime” by OLSSON ft. GrantThe newest single off OLSSON’s forthcoming album Tropical Cologne, due out on April 26 via Universal Sweden, is a banger. Not unlike this Swedish producer, “Some Summertime” boasts an excitable sound with a warm spirit. It just may be the pick-me-up you need after a long week (or day). The track was co-written by Peter Bjorn and John’s Bjorn Yttling.