In 2008.
Yes Mindless behavior is still together
You can't be in Mindless Behavior. They auditioned for it in 2008 and have been together ever since.
Together
yes they did
yes
Mindless Behavior started training together as a band in 2008 and started performing in 2010.
2008
yes. they are
Yes
they met each other.
5 years
No they don't have a song together.