- Sayonara Surfboard (さよならサーフボード; Goodbye Surfboard)
- Akimoto Yasushi
- Inoue Yoshimasa
- Other Information
- Arrangement: Inoue Yoshimasa
Members who ranked 17th to 32nd in the AKB48 41st Single Senbatsu Sousenkyo performed a coupling track as Under Girls.
Artist: Under Girls (アンダーガールズ)
- (Center: Kodama Haruka)
- AKB48 Team K: Takajo Aki (#30), Minegishi Minami (#19)
- AKB48 Team B: Kato Rena (#28), Kizaki Yuria (#22)
- AKB48 Team 4: Okada Nana (#29), Kojima Mako (#26), Takahashi Juri (#25)
- SKE48 Team S: Oya Masana (#20)
- SKE48 Team KII: Oba Mina (#27), Furuhata Nao (#24)
- SKE48 Team E: Suda Akari (#18), Tani Marika (#23)
- HKT48 Team H: Tashima Meru (#32)
- HKT48 Team H / AKB48 Team K: Kodama Haruka (#17)
- HKT48 Team KIV: Fuchigami Mai (#31)
- HKT48 Team KIV / AKB48 Team 4: Tomonaga Mio (#21)
There are currently two versions of "Sayonara Surfboard" to be found in AKB48's discography. These versions are:
- Sayonara Surfboard (Original)
- Found on the Types-A, B, and Theater editions of the "Halloween Night" single as track #2.
- Sayonara Surfboard off vocal ver.
- Found on the Types-A, B, and Theater editions of the "Halloween Night" single as track #5. This is the standard version without the main vocals.