Ex-Destiny's Child singer Arrested!

 
Ex-Destiny's Child singer Farrah Franklin was arrested in South Carolina early Sunday morning for disorderly conduct ... TMZ has learned and our sources tell us alcohol was definitely involved.

Franklin -- who who spent 5 months with the group in 2000 before Beyonce and Kelly Rowland gave her the boot -- was booked into the Horry County Detention Center in Conway around 5AM.

So far, it's unclear what led to the arrest ... but were told she was ticketed for disorderly conduct.

Hours before, Franklin happily posted a picture on the beach.

She was released Sunday afternoon on bond.

This is not Franklin's first arrest for flying off the handle.  She was popped in 2011 in L.A. for disorderly conduct ... and we're told booze was also involved.  She claimed she was the victim of racial profiling.