this debut songs was a big hit, and popular songs such as "dancing lonely night" and "mademoiselle bruce" were skipped one after another. in march 1968, the jaguars first and only appeared in many televisions shows and of course there was a movie called "make way for the jaguars" (directed by yôichi maeda and produced by shochiku), but at the end of the same month, the band leader yukio miya withdrew due to internal conflict with the music directors. after yukio left the group, 19 year old takeshi hamano joined the alternative drums in april and shin became the leader of the group at the age of 20. in june, they released a hit song "the legend of xanadu" and in september with "two people in the starry sky", but in january 1969, "bruce for lovers" was a remarkably popular song like other gs songs. it has become a song that has been turned into a musical stage play.