Rina Ikoma, Japanese singer and actress (Nogizaka46 and AKB48)

Rina Ikoma is an actress and former idol singer best recognized as the "Face of Nogizaka46". She was a first generation member of the girl group Nogizaka46 and AKB48's Team B, also known as the former's eternal ace and original center, being appointed the position for an A-side six times in total for Nogizaka46's first five singles, "Guruguru Curtain", "Oide Shampoo", "Hashire! Bicycle", "Seifuku no Mannequin", and "Kimi no Na wa Kibō", as well as their 12th Single "Taiyō Nokku", which was the record highest at the time for the group, and is still the most for solo centers. Yasushi Akimoto originally made it to be so that Ikoma's graduation single "Synchronicity" was for her as center, but she declined.

Nogizaka46 is a Japanese female idol group produced by Yasushi Akimoto, created as the "official rival" of the group AKB48. They are the first group from the Sakamichi Series, which also includes sister groups Sakurazaka46, Yoshimotozaka46, and Hinatazaka46.

AKB48 is a Japanese idol musical girl group named after the Akihabara area in Tokyo, where the group's theater is located. AKB48 has sold more records than any other female musical act in Japanese history. AKB48's producer, Yasushi Akimoto, wanted to form a girl group with its own theater and performing daily so fans could always see them live. This "Idols You Can Meet" concept includes teams which can rotate performances and perform simultaneously at several events and "handshake" events, where fans can meet group members. Akimoto has expanded the AKB48 concept to several girl groups within Japan, and internationally in Mainland China, Indonesia, Thailand, Taiwan, Philippines and Malaysia.

December 29 is the 363rd day of the year in the Gregorian calendar; two days remain until the end of the year.