Bruno Mars’ glittering “24K Magic,” Rae Sremmurd’s sparse “Black Beatles,” and D.R.A.M.’s giddy “Broccoli” are just a few of the crowd-pleasers on this collection of megahits and up-and-comers. The set’s high-energy mix showcases the sincere strummers and feisty dance acts at the head of music’s Class of 2017, while offerings like Maggie Rogers’ dreamy “Alaska,” JoJo’s defiant “No Apologies," and Urban Cone’s throwback love song “Old School” represent pop’s next wave.