Guts!

The single was released in two editions: a limited edition including a bonus track and a bonus DVD with a music video for "Guts!", and a regular CD only edition including two bonus tracks and karaoke tracks for all the songs. The limited edition also contains a 12-page booklet.

"Guts!" debuted at number one on the Oricon Singles Chart on May 12, 2014.^[4] It sold 501,493 copies in its first week, which pushed the group's all-time single sales to 20.081 million, making them the fifth male artist (after B'z, Mr. Children, SMAP, and Glay) to sell over 20 million singles.^[5] The single dropped to number three in its second week, selling 43,778 copies.^[6] It spent a further two weeks in the top ten^[7][8] and altogether 44 weeks in the Top 200.^[9] "Guts!" was the sixth best-selling single of the year in Japan, with 604,654 copies sold.^[10]

"Guts!" debuted at number 23 on the Billboard Japan Hot 100 on April 28, 2014.^[11] It rose to number 15 the following week and peaked at number one on May 12, 2014.^[12][13] It remained at number one in its fourth week.^[14] The song charted for 20 weeks.^[15] "Guts!" placed first on the year-end Japan Hot 100 chart and placed second on the year-end Top Single Sales chart.^[16][17]

In Taiwan, it peaked at number seven on the G-Music Combo chart,^[18] and number one on the J-pop chart.^[19]