The answer is as follows: The name of the song is 'Lost Love Front Alliance' is the title song of the same name of 4MINUTE's sixth mini album 'Crazy', and with a strong trap rhythm and members' voices, you can dream about the deviation of daily life by listening to this song. In particular, not only the chorus of 'Crazy' is addictive, but you can see the charm of each member's dance, which is performed by famous choreographers Parris Goebel & Kiel Tutin who have worked with Jennifer Lopez, so the song adds flavor to the song.