What day in 2011 is ss501 making there comeback?

Answer 1

SS501 did not officially make a group comeback, but members of SS501 had separate promotions.

On January 2011, Park Jung-Min released a single, "Not Alone."

On March 8th, 2011, Kim Hyung-Jun released a mini-album, "My Girl."

On April 1st, 2011, Park June-Min released his mini-album, "The, Park Jung Min."

On May 12, 2011, Heo Young-saeng released a mini-album, "Let It Go."

On June 8th, 2011, Kim Hyun-Joong promoted his album, "Breakdown."

On July 27th, 2011, Kim Hyung-Jun released his first Japanese single, "Long Night."

On September 27, 2011, Park Kyu-Jong released a mini-album, "Turn Me On."

On October 11th, 2011, Kim Hyun-Joong followed up with a mini-album, "Lucky."

On December 15th, Kim Hyun-Joong released a digital single, "Marry You / Marry Me."