It has just been announced that Tanka Reina will be graduating from Morning Musume and Hello!Project at the end of Morning Musume's upcoming 2013 spring tour. A final date hasn't been announced yet. Reina will be graduating to focus on her newly formed rock band, some of the members can be seen below holding guitars.
Fans will be given the chance to name Reina's band by emailing email@example.com, they would like you to include your name age and gender. For more details (and a look at the band members) click here
Reina tried out for Morning Musume during the "Morning Musume LOVE Audition 2002" audition and become the groups 6th generation along with Kamei Eri, Michishige Sayumi and Fujimoto Miki.