Cali Swag District

President Barack Obama may THINK he's good enough to teach "The Dougie" to party goers at Michelle's 50th b-day bash ... but the rappers who invented it say it's the Prez who needs a lesson ... from them.

Rappers Cali Swag District were stoked that their moves made it to 1600 Pennsylvania Avenue, telling us, "it just took us to a new level ... political, upper class level."

But the guys say it's impossible for B.O. to get his Dougie certification without a lesson from the masters ... so they're sending an invite for the Prez to attend one of their BBQs.

As for why they chose a barbecue ... Yung from C.S.D. says it's simple ... "Black people love BBQ!"

His words.

We're told a heavyset man who goes by the name, "Bubba" -- was in front of the liquor store in Inglewood, CA Monday night when someone shot and killed M-Bone.

Bubba famously did the "Dougie" without a shirt on in the group's music video -- and is close personal friends with several members of C.S.D.

Several witnesses tell us Bubba was waiting inside of the car M-Bone drove to the store ... and when the fatal shots were fired, shards of broken glass struck Bubba in the face. Witnesses also tell us M-Bone was shot as he tried to get inside of the car.

Bubba was hospitalized for his wounds -- though we're told the injuries are not life-threatening.

M-Bone's girlfriend -- who lived with him for more than a year -- says a man living in their apartment complex was obsessed with the rapid rise of Cali Swag, and overtly hostile to M-Bone -- aka, Mante Talbert.

The girlfriend -- who is scared and does not want her name used -- confirms M-Bone was in a Twitter war with the jealous man, which we previously reported. We're told the jealous man made threats of violence.

The girlfriend tells us ... on Sunday ... she picked M-Bone up at the airport at 12:15PM and took him back to their apartment. Later that night, at around 10PM, M-Bone took her car and said he was going to the studio to record.

She tells us soon after she got a call from another member of Cali Swag with the devastating news her boyfriend had been shot.

As we first reported, the gunman fired shots as M-Bone stood near his girlfriend's car which was parked outside an Inglewood, CA liquor store. The shooter drove a short distance, then made a U-turn and came back, presumably to see if he had hit his target.

TMZ spoke to C Smoove and Jay Are Monday in L.A. -- where they wanted to make one thing clear ... M-Bone was NOT involved in any gang violence.

Our sources say M-Bone's friends have been in touch with cops, telling investigators after he got back to L.A. from his tour, he got involved with a girl. M-Bone's friends say a guy who lived in the woman's building didn't like the relationship, and allegedly began threatening M-Bone via Twitter.

We're told M-Bone did not back down and the two men started cyber smack-talking each other.

TMZ has learned ... the black car in which M-Bone was shot is registered to the woman.

Cops are trying to figure out why M-Bone was driving the woman's car and whether the cyber war is in any way related to the shooting.

CSD released the statement to TMZ, claiming, M-Bone "was the victim of a random act of violence last night, Sunday, May 15th in his hometown of Inglewood, CA."

"As police are still investigating the shooting and untimely death , we ask that anyone with information contact the Inglewood Police Department."

CSD adds, M-Bone "was an inspiration to his family, friends, and fans. He was a hardworking, passionate artist and dancer that will be deeply missed."

M-Bone -- aka Mante Talbert from the rap group Cali Swag District -- was next to his car in front of an Inglewood, CA liquor store at 11:32 PM Sunday when shots rang out. Our sources say the shooter was driving down La Brea Avenue alone in his car when he fired.

Inglewood detectives are investigating, but right now it looks like M-Bone was just in the wrong place at the wrong time.

We're told M-Bone, who became famous with his group for the song, "Teach Me How to Dougie," was taken to the hospital where he was pronounced dead.

Earlier this morning, the group's leader, Smoove -- posted a Tweet saying, "Ma life changed drastically in the. Blink of an eye rip mbone."

So far, it's unclear how M-Bone died.

Cali Swag District shot to stardom with their hit, "Teach Me How to Dougie."

M-Bone -- real name Mante Talbert -- was 22.

Just last year, M-Bone and the rest of the guys came in to the TMZ studio and taught Harvey how to "Dougie." He couldn't have been nicer.

The 20-year-old Washington Wizards star got down with fellow NBA'ers Tiny Gallon ... and DeMarcus Cousins at the Panini NBA Rookie Photo Shoot in New York yesterday.

CSD were nothing short of awesome today as they talked about everything from their rise to fame ... to their remix of a Michael Jackson song ... to the origins of the "Dougie."