O-Town was the original made-for-TV boy band, created in 2000 by Diddy on hte first installment of 'Making the Band.' Ashley Parker Angel went on to have a short-lived solo career and MTV reality show, so that's something substantial we guess.
2. Da Band
Then came 'Making The Band 2' where Da Band was born. They only had a few singles before Diddy officially dismantled the band at the season 3 finale. Alrighty then.
3. Danity Kane
And in the last iteration of the show in 2005, Danity Kane was born in 'Making the Band 3.' They had a good thing going and had a few solid Billboard hits ("Show Stopper" being the best, obviously), but then dismantled in early 2009. But they're baaaaack!
4. One Direction
Directioners all over the universe sometimes forget that One Direction was formed by Simon Cowell when he put all five guys, who auditioned individually, together on 'The X-Factor' in the UK. Clearly this was the greatest decision ever made.
5. Emblem 3
Last season on 'The X-Factor' US, Simon Cowell coached another boy band to fame—Emblem 3! The guys are now signed to Columbia Records and are working on their debut album.
6. Fifth Harmony
And speaking of 'The X-Factor', Simon also plucked these five girls who auditioned for the show individually and made them into Fifth Harmony. They came in third place on the show and are now signed to La Reid's Epic Records, so not too shabby, eh?
7. Little Mix
And going back over to the UK, Little Mix was also formed by Simon Cowell on 'The X Factor.' They won season 8 and are now making their mark in the US (their song 'Wings' debuted on 'Glee' last week!). Oh, and Perrie Edwards from Little Mix is dating Zayn Malik from One Direction, so that's sort of huge.
8. Eden’s Crush
In 2001, Eden's Crush was created on the TV show, 'Popstars,' which aired on The WB. RIP WB, RIP Eden's Crush, but long live Nicole Scherzinger.
This boy band was basically a spoof of all the others, but they still count because they had a show of the same name to go along with it. And also because their single 'U + Me = Us" is just pure musical genius.
10. Big Time Rush
And lastly, of course we had to include our buddies of Big Time Rush. Kendall, Logan, James and Carlos each auditioned for one of four roles on the show of the same name on Nickelodeon, and then, once they were cast, the band was formed! The guys' new album '24 Seven' is coming out in June, so stay tuned.