James and Chico DeBarge Arrested For Allegedly Possessing Fentanyl and Meth

3:40 PM PT -- The management team of Chico DeBarge tells TMZ ... "We want to make it clear that Chico DeBarge does not use drugs and has maintained a clean and healthy lifestyle for quite some time. Any allegations, statements, or implications suggesting otherwise should not be attributed to Chico. Regarding the outstanding warrant associated with Chico's arrest, the warrant was related to a non-drug-related civil matter. Chico and his legal representatives are addressing the matter through the appropriate legal channels."

The statement continues, "Chico DeBarge remains focused on his music, his personal wellness, and his professional commitments. He has been actively performing across the country and is currently preparing to celebrate the 30th anniversary of his acclaimed album, Long Time No See, while continuing his “Long Time No See” Tour. Chico has worked hard throughout his career to maintain the highest standards of personal and professional integrity. He is grateful for the continued support of his fans, family, promoters, venues, and colleagues throughout the music industry."

James and Chico DeBarge were arrested last week for drug possession during a traffic stop in Los Angeles -- and cops say they found possible fentanyl and meth on the 80s singing sensations.

Our law enforcement sources tell us ... James and Chico were busted on the night of August 27 in Burbank, CA, after police pulled them over for traffic violations.

We're told James was driving a Chevy Tahoe that was towing a Nissan SUV with Chico sitting inside. Our sources say the SUVs did not have license plates and the siblings were not wearing seatbelts ... both of which would be traffic violations.

We're told, during the stop, police found the brothers in possession of "suspected fentanyl and suspected methamphetamine."

James and Chico were arrested for possession of a controlled substance, and cops say Chico also had an outstanding warrant ... although it's not clear for what. NBC4 was the first to report on the news of their arrests.

The DeBarge brothers come from a large family of musicians and were popular throughout the '80s and '90s with hits such as "Rhythm of the Night" and "I Like It." Over the years, Chico has been very open about his drug issues and even previously served time on narcotics charges.