• Birthplace: N/A
• Age: 30
• Height: 160
• Weight: 40
• Website: N/A

Son Seung-wan was born in Seongbuk-dong, Seoul, South Korea. on February 21, 1994. She moved to Canada with her family as a child and started using her English name, Wendy Shon. In middle school, Wendy was a student at Shattuck-Saint Mary's in Faribault, Minnesota. She later studied at Richmond Hill High School in Ontario.

In 2010, she auditioned for the "Koreaboo: Cube Entertainment Global Auditions 2011" with an online audition and was picked from over 5,000 videos by Koreaboo and Cube Entertainment to continue to the final round in Vancouver, Canada. G.NA personally picked the 15 finalists with Koreaboo to open for her first solo showcase, held in Vancouver, Canada.

In 2012, she auditioned at the 'S.M Global Audition' in Canada and was recognized for her musicality, being able to play instruments such as the piano, guitar, flute and saxophone, as well as having strong vocal skills.

S.M. Rookies Wendy was part of S.M. Entertainment's pre-debut group, S.M. Rookies, along with Red Velvet members Irene, Seulgi and Yeri.

A clip of Wendy singing a cover of Taylor Swift's "Speak Now" was released on S.M. Entertainment's official Youtube channel. She also released a track Because I Love You, which was one of the soundtracks of the Mnet drama series, Mimi, which labelmate Changmin starred in, appearing in the music video as well.

On August 1 2014, she finally debuted with Red Velvet. Wendy has also collaborated with rapper Yuk Ji-dam for the song "Return", one of the OSTs of KBS2's drama Who Are You: School 2015. The song was released on June 8, 2015 and debuted at #31 on the Gaon Singles Chart. She released another song "Let You Know" for the soundtrack of the JTBC drama D-Day on October 16. On January 9, 2016, she became a panelist on We Got Married. On King of Mask Singer (episode 43 aired on January 24, 2016), she participated as a contestant with the stage name "Space Beauty Maetel". Wendy released a collaboration single with Eric Nam titled "Spring Love" on March 4, 2016, as part of S.M. Entertainment's SM Station project.