According to SM Entertainment on March 30, Red Velvet member Seulgi has tested positive for COVID-19. 

The agency relayed on this day, "Seulgi, who has thus far completed up to her second dose of the COVID-19 vaccine, is in quarantine after halting all of her schedules. She is not experiencing any abnormal symptoms."

Additionally, SM stated, "Wendy saw a negative test result when she underwent a test using a self-diagnosis kit; however, she plans on undergoing precautionary PCR testing." 

As a result, Red Velvet will be cancelling all appearances on this weekend's music programs, such as 'M! Countdown' on March 31 and 'Music Bank' on April 1.