On Thursday November 21, 2013, fans received word through Twitter from several group members that the group would reunite and be planning a tour for the next year. Several videos have hit the web showing the group recording material for an upcoming new album. The group planned to release the album before the tour kicked off and in doing so, signed with BMG Rights Management. On May 26, 2014, Day26 releases their first single called "Bullshit" off their upcoming EP entitled "The Return", that was set to release on June 26, 2014.  In Spring 2017, all members of Day26 announced over social media they would hold a "10 Year Anniversary Experience" concert that would take place at the Highline Ballroom in New York City on August 26, to commemorate the day they were formed in 2007. Due to the venue being sold out and overwhelming fans demanding more tickets, the band decided add an encore concert for August 27. Joining the concerts' roster of performances is the bands' fellow reality show Making The Band 4/label mate Donnie Klang, who will also celebrate his 10-year solo reunion of the day he was chosen by P. Diddy, which kick-started their careers.  In a recent interview with radio personality Sway on his radio show, Sways Universe, Willie announced that the group was recording their third studio album, while also discussing what fame has done for the group in their 10-year run as well as opening up about the controversy with Diddy not allowing the band to appear in the Bad Boy Family Reunion Tour.

Answer this question "When did the group reunite?" by extracting the answer from the text above.
On Thursday November 21, 2013, fans received word through Twitter from several group members that the group would reunite and be planning a tour for the next year.