2PM (Come Back When You Hear This Song)

K-Pop Time Machine (1)
2PM (Come Back When You Hear This Song)
This is the title track of 2PM's 3rd full-length album, "Grown." This song with an emotional melody is about a man who regrets breaking up with his girlfriend. The 6 members of 2PM returned looking more masculine and showing more maturity in terms of music.