Some of Britain's biggest talent show stars share their memories from when they were 12.
Source: CBBC
Series 2 - End Of Summer
Celebrities look back on their past summer holidays, including the all-important move from primary to secondary school.
05-09-2014
CBBC
Series 3 - School Days Special
Celebrities including Sam and Mark and Little Mix look back on their favourite subjects and how they survived exams in this school special.
04-09-2014
CBBC
Series 3 - 12 Again Dr Who Special
Super fans join cast members past and present to share their memories of watching TV's top Time Lord when they were young.
25-07-2014
CBBC
Series 3 - Music Special
An all star cast of pop and rock stars share their memories from before they made it in the music industry.
18-07-2014
CBBC
Series 3 - Magicians Special
Famous faces revisit the music and TV shows they loved and the big news stories that happened when they were kids. A cast of magicians demonstrate their first cool magic tricks.
17-07-2014
CBBC
Series 3 - Eastenders Special
Actors from the cast of EastEnders share memories from when they were 12, including their favourite TV shows and music and what news stories had a big impact upon their lives.
16-07-2014
CBBC
Series 2 - End Of Summer
Celebrities look back on their past summer holidays, including the all-important move from primary to secondary school.
05-09-2014
CBBC
Series 3 - Magicians Special
Famous faces revisit the music and TV shows they loved and the big news stories that happened when they were kids. A cast of magicians demonstrate their first cool magic tricks.
17-07-2014
CBBC
Series 1 - Episode 8
Olly Murs, Sara Cox, Meera Syal and Matt Dawson become 12 Again and revisit the music and TV shows they loved when they were kids.
15-07-2014
CBBC
Series 3 - Friendship Special
Celebrities remember the best of times with their mates and talk about how they coped when they were bullied.
09-07-2014
CBBC
Series 3 - Eastenders Special
Actors from the cast of EastEnders share memories from when they were 12, including their favourite TV shows and music and what news stories had a big impact upon their lives.
16-07-2014
CBBC
Series 3 - 12 Again Dr Who Special
Super fans join cast members past and present to share their memories of watching TV's top Time Lord when they were young.
25-07-2014
CBBC
Series 3 - Music Special
An all star cast of pop and rock stars share their memories from before they made it in the music industry.
18-07-2014
CBBC
Series 3 - School Days Special
Celebrities including Sam and Mark and Little Mix look back on their favourite subjects and how they survived exams in this school special.
04-09-2014
CBBC
Series 1 - Episode 1
Celebrities look back on their childhood. Alexandra Burke, Sam and Mark, and Dame Jacqueline Wilson revisit the music and TV shows they loved and the news stories from their youth.
14-07-2014
CBBC