TFBOYS, composed of Karry, Roy and Jackson Yi, officially debuted on August 6th, 20 13, and released the first EP "Dream Begins" on August 8th, 20 13. The first reason why TFBOYS fans are called "four-leaf clover" is from a lyric of "Heart" in TFBOYS debut EP, "Four-leaf clover will bloom beautifully in the future".
The second reason is that the three members of the group and the fourth fan * * * grew up with the four-leaf clover, and the pattern of the four-leaf clover was also designed as the LOGO of the TFBOYS group. The first leaf of a four-leaf clover represents true love, the second leaf represents health, the third leaf represents the three of them, and the fourth leaf represents fans.