L-R: (top) Yeri, Winter, Irene, NingNing, Joy (bottom) Wendy, Karina, Seulgi, Giselle
ReVe-spa (REd VElvet – aeSPA) [레벨-스파]
This is a unit made up of the members of Red Velvet & aespa for a SMTOWN: Winter Palace single
- Debut (Y-M-D): 22-12-26
- Label: SM Entertainment
- Music Videos:
- Korean MVs: Beautiful Christmas
- Albums:
- Korean: SMTOWN: Winter Palace (Beautiful Christmas) [Collab Album]
Members:

- Stage Name (Hangul): Irene (아이린)
- Position: Leader, Main Rap, Lead Dance, Vocal, Visual, Center
- Real Name: Bae Joohyun (배주현)
- Birthday (Y-M-D): 91-03-29
- Nationality: Korean
- Height: N/A
- Blood Type: A
- Group: Red Velvet

- Stage Name (Hangul): Seulgi (슬기)
- Position: N/A
- Real Name: Kang Seulgi (강승기)
- Birthday (Y-M-D): 94-02-10
- Nationality: Korean
- Height: N/A
- Blood Type: A
- Group: Red Velvet

- Stage Name (Hangul): Wendy (웬디)
- Position: N/A
- Real Name: Son Seungwon (손승완)
- Birthday (Y-M-D): 94-02-21
- Nationality: Korean
- Height: N/A
- Blood Type: O
- Group: Red Velvet

- Stage Name (Hangul): Joy (조이)
- Position: Lead Vocal, Lead Rap
- Real Name: Park Sooyoung (박수영)
- Birthday (Y-M-D): 96-09-03
- Nationality: Korean
- Height: N/A
- Blood Type: A
- Group: Red Velvet

- Stage Name (Hangul): Yeri (예리)
- Position: Lead Rap, Vocal
- Real Name: Kim Yerim (김예림)
- Birthday (Y-M-D): 99-03-05
- Nationality: Korean
- Height: N/A
- Blood Type: O
- Group: Red Velvet

- Stage Name (Hangul): Karina (카리나)
- Position: N/A
- Real Name: Yoo Jimin (유지민)
- Birthday (Y-M-D): 00-04-11
- Nationality: Korean
- Height: 167cm
- Blood Type: B
- Group: Aespa

- Stage Name (Hangul): Giselle (지젤)
- Position: Rap, Vocal
- Real Name: Uchinaga Aeri (うちなが えり)
- Birthday (Y-M-D): 00-10-30
- Nationality: Japanese-Korean
- Height: 166cm
- Blood Type: O
- Group: Aespa

- Stage Name (Hangul): Winter (원터)
- Position: N/A
- Real Name: Kim Minjeong (김민정)
- Birthday (Y-M-D): 01-01-01
- Nationality: Korean
- Height: 165cm
- Blood Type: A
- Group: Aespa

- Stage Name (Hangul): Ningning (닝닝)
- Position: Vocal, Maknae
- Real Name: Ning Yizhuo (宁艺卓)
- Birthday (Y-M-D): 02-10-23
- Nationality: Chinese
- Height: 163cm
- Blood Type: B
- Group: Aespa