Macklemore & Ryan Lewis’s “Can’t Hold Us” has been hogging the No. 1 spot for a few weeks now, but hark! What song through yonder top five breaks? Why, it is Daft Punk’s “Get Lucky,” which just hit No. 4, its highest chart position to date. Not that a Song of Summer has to hit No. 1 on the Hot 100, but it helps. Meanwhile: please consider “Hey Love,” off Quadron’s upcoming Avalanche, if you have not already. The whole album is streaming here.