Mac Miller detailed his journey from Pittsburgh prospect to Internet phenom much better on the On and On and Beyond EP. With the goal line for stardom in sight, Blue Slide Park sounds triumphantly carefree. What it lacks in depth, thanks to Miller's tedious variations on "I'm so rich and famous" and "b*tches want to sleep with me," it makes up with ambient vibes from ID Labs ("Of the Soul"), Clams Casino ("My Team") and others. Miller tosses a few clunkers, like "I always do it big like a Jewish nose" on "Under the Weather." But he's smart enough to not mess up a winning hand.