A.B.C-Z

 is a five-member Japanese boy band under Johnny & Associates. The group's former name was A.B.C., which stands for Acrobat Boys Club. It was changed to A.B.C-Z after Ryosuke Hashimoto was moved to the group from J.J.Express in 2008. Due to the Japanese pronunciations of their name, the fans usually refer to them as "Ebi".
The group was a former Johnny's Jr. unit. They debuted February 2, 2012 with their DVD Za ABC ~5 Stars~. 
History.
2001–2008: As A.B.C..
Members:
In 2002 they became A.B.C. with Yoshikazu Toshin.
2008–2011: A.B.C-Z pre-debut.
In Summer 2008, it was announced that Ryosuke Hashimoto, who was a member of J.J.Express would join A.B.C., thus the group name changing to A.B.C-Z, their name is an acronym for "Acrobatics Boys Club Z" the Z symbolizing the last member coming into the group and completing them like Z completes the alphabet. Right after that they held a concert, along with Kis-My-Ft2. 
In May 2010 they were allowed to hold their own concert at Theater Crea in Tokyo. It was also the first time they produced their own concert. They had their solo live from May 11 until 19th and then other units from Johnny's Jr. will take part in, and hold four different kinds of show in total until May 31.
On July 23, during the PLAYZONE'11 musical, Fumito Kawai broke his left leg, causing him not to be able to appear for the rest of the show. After PLAYZONE'11 A.B.C-Z was scheduled to be in the stage play Shonentachi Koushi naki Rougoku. Johnny H. Kitagawa was at the opening of this show and revealed a new group of seven, ABC-xyZ, centred on the already existing four member group A.B.C-Z. He also hinted that things could get going by 2012, but for that Kawai needs to get better first.
On November 6 they held their first one-man concert at Tokyo's Yoyogi National Stadium for 26,000 fans. They also announced that in February next year they will be hosting a play, titled “ABC-za Star Kouen”, at Nissay Theater in Tokyo. Johnny H. Kitagawa commented that they may debut the next year.
On December 9 A.B.C-Z held a press conference for their upcoming stage play “ABC-za Star Kouen”. They also announced that they will be debuting in 2012 with a DVD. This would make them the first Johny's to do so. They hope to release the DVD before the opening of their stage play on February 4. It is said that the DVD will be released under Johnny's Entertainment. By the end of December the release date, February 1st, 2012, was then made public, along with the content of the DVD.
2012–2018: Debut and 5th anniversary.
A.B.C-Z made their debut in 31st January at which gathered 15.000 fans. Their DVD debut got number 1 in Oricon weekly ranking. In July, their variety show "ABChanZoo" starts broadcasting in TV Tokyo.
In June 2014, the first drama of A.B.C-Z members "" starts broadcasting in TV Tokyo.
In September 2015, A.B.C-Z released their first single "Moonlight Walker" which got number 1 in Oricon weekly ranking.
4 years after their debut, in July 2016 A.B.C-Z established their official Fan Club
A.B.C-Z celebrated 5th anniversary of the group's debut in 2017 by releasing the single " and an album ", followed by the "".
In 2018 A.B.C-Z celebrated their 10th year of the group formation and did a collaboration event with amusement park , the event was called "A.B.C-Z 5stars CIRCUS in JOYPOLIS". The group also released a new single "JOYしたいキモチ" for this collaboration event.
2019.
A.B.C-Z held their last concert of the in Yokohama Arena on January 8, they announced a new single "Black Sugar" which will be released on March 28. They also announced a new drama "Our Showtime" that will be airing in Nagoya TV on April, the theme song for the drama is A.B.C-Z song "Showtime" from the single "Black Sugar".
The group released their 6th album on August 7th ", followed by the tour with the same title as their album. Their collaboration event with the amusement park " continued for the second year in a row. 
Discography.
DVD.
Original DVDs
Music Videos
Live Tour DVDs
Musical/Stage Play DVDs
Other DVDs