19-year-old artist Adam Pastel just dropped his second single, "LMK." The R&B singer enlists emerging rapper 30 for their first-ever joint effort. Together, the two mesh pretty well. This strong summer anthem, produced by Justice Skolnik, that features tuneful melodies, hard-hitting 808's, and an infectious hook that'll change the way you see the three letters "LMK" for a while.

"Baby you should let me know when you want to go," Adam sings. He has haunting vocals that'll catch the ear quickly and he does just that on his latest single before 30 comes in on the latter verse. Personally, I don't believe Adam sounds like any singers or songwriters we've heard in a while, which is pretty impressive. Check out "LMK" below.