Re:birth day

 is a song by Roselia.

It is the title track of their 2nd single, with Hidamari Rhodonite as the coupling track. It was released on June 28, 2017. The limited Blu-ray edition contained the live footage for the song, as well as behind the scene digest video from Bushiroad 10th Anniversary Live.

It can be unlocked in BanG Dream! Girls Band Party! by finishing Chapter 19 of Roselia's First Band Story.

It was written by Oda Asuka, and composed and arranged by Fujinaga Ryutaro.

Videos
Live Performance (Preview) = Expert Preview =

Chart Performance

 * On June 28, 2017, Re:birth day ranked 4th in the daily singles ranking in Oricon.
 * The single ranked 9th in the weekly singles ranking.
 * The single stayed in the weekly charts for 23 weeks.

Live Performances

 * April 30, 2017: Bushiroad 10th Anniversary Live
 * June 30, 2017: Original Rosenlied
 * July 29, 2017: Rosenlied Re-Performance
 * October 8, 2017: Zeit
 * January 13, 2018: GARUPA Live in Tokyo Day 1
 * May 13, 2018: -Ewigkeit-
 * November 7, 2018: Vier
 * February 21, 2019: Hitze
 * July 4, 2019: Wasser
 * November 30, 2019: Rausch und/and Craziness Day 1
 * February 1, 2020: Rausch
 * December 11-12, 2021: Edelstein