A support group has been formed on Twitter to provide a forum for JLS fans to "unite and share their love" for the band.
One follower commented that they were "crushed" to hear about the band's decision to split, while another wrote "those boys have so much more to offer the music business".
Fans of JLS are in shock over the news that the boyband announced they are to split. They said after 5 number ones it is time to separate.
JLS fans may be upset that their idols split up today but do not worry, there is hope. Here are four bands who broke up but later reformed.
The boyband JLS are to split after six years together. They have said will bow out with a farewell tour and a greatest hits album.