Background: Day26 is an American male R&B music group formed in August 2007 by Sean "Diddy" Combs in a handpicked selection at the end of MTV's Making the Band 4. The group consists of Robert Curry, Brian Angel, Willie Taylor, Qwanell Mosley and Michael McCluney. The moniker is a tribute to the day when Angel, McCluney, Mosely, Curry, and Taylor went from unknowns to stars. The group released their first album, Day26, on March 25, 2008, one week after their then labelmates and Making the Band 3 winners Danity Kane released Welcome to the Dollhouse.
Context: Day26 was founded on the Making the Band 4 Season 1 finale on August 26, 2007. Brian Andrews, Michael McCluney, Qwanell Mosley, Robert Curry, and Willie Taylor were chosen to be a part of Diddy's brand new all-male R&B music group, while fellow cast member Donnie Klang was chosen as a solo artist for Bad Boy Records. The name Day 26 was selected from the day that they were picked which was August 26, 2007.  After being signed as a group to Bad Boy, Day 26 began another season of Making the Band with label mates Danity Kane and Donnie Klang. Upon this season, Day 26's debut single "Got Me Going" was released to download in January 2008. "Got Me Going" eventually peaked at #79 on the Billboard Hot 100. Day 26 later released their self-titled album Day26 on March 25, 2008. The next week, the album debuted at #1 on Billboard 200 selling 190,000 copies. This is the third feat. at #1 for Bad Boy winners. Album production includes Mario Winans, Danja, Bryan-Michael Cox, The Runners, and upon many others. The second single "Since You've Been Gone" was released on June 9, 2008. The song failed to reach Billboard Hot 100, but peaked at #52 on Billboard Hot R&B/Hip-Hop Songs. A third single was planned, but was scrapped due to low album sales, and production on their next album. Overall, the album sold 387,000 copies.  On August 19, 2008, Day26 returned with another season of Making the Band. This season involved in Making the Band 4 - The Tour, which resolved to the break-up of Danity Kane.
Question: when was the band formed?. Whats the answer?
August 26, 2007.