Momoclo Haru no Ichidaiji 2012 ~Momoclo All☆Stars 2012~ (ももクロ春の一大事2012 〜ももクロ☆オールスターズ〜) is a live concert of Momoiro Clover Z held in Yokohama Arena, Kanagawa on April 21, 2012. The live concert is the first day of their second annual spring live concert series titled Momoclo Haru no Ichidaiji ~Yokohama Arena Masaka no 2 DAYS~.
The concert DVD and Blu-Ray is released on September 5, 2012 and is their 7th concert DVD overall.
- DNA Rhapsody is debuted in this concert.
- The last encore song Konouta is performed with all of the guests.
- The limited album Momoclo All Stars 2012 is being sold in the concert venue, all of the songs featured there are also debuted in this concert.
- This is their live concert with most guest stars featured.
- The practice of sudden announcement of their next live concert by Shigeru Matsuzaki is being first performed on this concert. SUMMER DIVE 2012 in Seibu Dome is announced.
- Rino Sashihara of AKB48 invited the group to her Sashihara Rino Produce Dai Ikkai Yubi Matsuri ~Idol Rinji Sokai~ live concert.