I really liked the swing in Shinee's Jonghyun's "DejaBoo" this winter, and the new "She is" is on parity with that, with that same rhythm and panache that makes one just plain happy and wanting to dance.
Jay Park is a cool guy in my eyes with great humor, and one of the few male kpop artist I listen to. His Metronome is a prime example of a Korean doing a good version of Justin Timberlake.