DMX is on the hook for another $630,000 -- this according to a booking agency which claims X's legal problems torpedoed a lucrative international comeback tour ... and now, it's suing to get its money back.

The booking agency in question -- a company called Heavy Rotation -- filed the lawsuit in New York, claiming it struck an exclusive year-long deal with DMX in 2011 to book the rapper's concerts ... anywhere on the planet.

But according to the lawsuit, DMX was plagued with legal problems from the start -- a traffic violation in August, and two nasty child support disputes ... which led to a lien on the rapper's passport, preventing him from performing overseas.

According to the suit, HR bent over backwards to fix the legal issues -- coughing up nearly a hundred grand to cover bail, child support, and a slew of other legal bills ... hoping it would clear the way for the tour, a task that included lifting the lien on X's passport.

But HR claims its efforts were in vain -- because DMX continued to cause problems, hiring outside management that tried to book DMX on shows within the United States ... violating X's agreement with HR. On top of that, X couldn't resolve his passport issues ... and all concerts had to be canceled.
 
X's manager Jason tells a different story -- claiming DMX chose to sever all ties with HR after it put the rapper at risk with some unsavory business practices.

Still, HR claims it lost $749,285 on the deal gone bad -- and it wants the money back, stat.

Somebody call the paramedics ... because Drake just got BURNED -- courtesy of rap legend DMX, who claims he can't stand ANYTHING about the young MC ... right down to the kid's haircut.

DMX stopped by Power 105.1 in New York today where he unloaded on the rapper -- claiming, "I don’t like anything about Drake. I don’t like his voice. I don’t like what he talks about. I don’t like his face. I don’t like the way he walks. I don’t like his haircut."

X doesn't elaborate on the source of his hatred -- but insists he's cool with Drake's mentor Lil Wayne ... whose Young Money label signed Drake in 2009.

DMX also bashes Rick Ross -- saying, "He just talks about eating too much. How much can a n**** eat?"

Thanks to our friends at Power 105.1 for the clip -- click here for the full interview.

DMX has been accused of owing more than $1 million in back child support -- but TMZ has learned, the rapper ain't convinced the woman pointing the finger is really his baby mama.

X's ex, Patricia Trejo, was in L.A. Superior Court Thursday morning, arguing against a motion DMX filed in their ongoing paternity case -- in which the rapper asked the court for permission to perform in Europe.

You see, in paternity cases where significant child support is owed, the owing parent is prohibited from obtaining a passport without a court order -- and X wants a special dispensation.

But Patricia put her foot down in court Thursday -- claiming DMX owed $1 million in unpaid child support, going back to her daughter's birth over ten years ago ... and she was tired of waiting around.

Now here's the twist -- DMX tells TMZ, he hasn't paid because he's not convinced the girl is his ... and wants a DNA test to prove paternity before he starts handing over cash.

Stay tuned ...

DMX had the plane ride from Hell last night -- throwing up all the way from Miami to Charlotte, and then rushing straight to the hospital after landing.

According to DMX, he had some "bad shrimp" at his baby mama's house in Miami before he got on a plane -- commercial -- and then spent most of the flight tossing his cookies in the lavatory.

X tells us ... as soon as he touched down he went to Gastonia Memorial Hospital outside of Charlotte ... by limousine. Puking, but still balling!!

X spent about four hours in the emergency room getting treated for food poisoning, and then headed home.

No limo ride home though. A friend picked him up.

It's official ... DMX and his legendary rap crew Ruff Ryders are getting back together -- in fact, X tells TMZ, a blowout reunion tour is already in the works.

Ruff Ryders first lady Eve told us this weekend to expect a massive comeback -- but X says the RR reunion is already underway ... with CEO Waah Dean currently booking several venues across the country.

The tour is supposed to kick off in a few months -- and X tells us, the entire crew's already on board, including Swizz Beats, Drag-On, and Murda-Mook.

According to DMX, Eve and The L.O.X. haven't signed on yet -- but that's just because he hasn't gotten in touch with them yet. X insists, that will change very soon.

X tells us, "We are all family and we're going to come back stronger than when we left ... It's going to take the nation by storm."

With DMX out of prison ... the Ruff Ryders WILL roll again ... this according to the former 1st Lady of the rap crew, Eve.

The Grammy Winner was leaving La Guardia airport in NY this weekend when we asked about the status of her old ground breaking crew that included X, The LOX, Swizz Beatz, Drag-On and others.

Eve told us she hasn't spoken with X since he became a free man ... but insists, "I'm sure you'll see Ruff Ryders back together."

She's probably right -- X is blowing up again ... in part, due to the positive response he's been getting from recent live performances.

Ryde or die.

The man who allegedly tried to choke out DMX on stage last week wants to clear his name -- telling TMZ, he never tried to attack the rapper ... he was simply trying to give him a hug, from one ex-con to another.

You probably don't recognize the guy -- but the alleged attacker is none other than underground skate legend Andy Roy ... and Andy claims he meant no harm when he jumped on stage at X's performance in Long Beach last Thursday, telling us, "I just wanted to give him a Top Ramen hug."



Andy says he lived off Top Ramen in jail -- and he wanted to give DMX a hug in solidarity, since the rapper was recently released from the clink as well.

According to Andy, it was all a misunderstanding -- adding, "DMX is sick man! RUFF RUFF RUFF!"

A crazed fan got his hands around DMX's throat for a split second at a concert in Long Beach last night ... and it was all caught on tape. 

X was performing at the Cáfe Sevilla in Long Beach ... and was just about to start his second song when someone hopped on stage, and appeared to attack the rapper.

Security rushed right in -- and put the stage intruder in a MONSTER choke hold -- then wrangled him off the stage.

The DJ briefly stopped the music during the melee ... but X immediately ordered him to get back to spinnin' ... yelling, "We don't stop the music for s**t!"

Ruff night. 

For the first time in who knows how long, DMX had a run-in with police that didn't result in another mug shot -- but it'll still cost him ...

Law enforcement sources tell TMZ, X was pulled over in Hollywood last week for not wearing a seat belt. Cops ticketed him and his assistant ... and the two were let go.

In case that wasn't clear, DMX WAS LET GO. No handcuffs, no jail, no nothing. Just a small slap on the wrist ... followed by sweet, sweet freedom.

X tells us, "Just a minor ticket no biggie. A quick learning lesson about not wearing a seat belt. I will handle and pay for it." The rapper adds, "This would be the only reason I come in contact with the police because I am a changed man."

DMX is continuing to clean up his image (just not literally this time) as a concert in Texas turned into a visit to injured soldiers.

X was doing a show in San Antonio last Thursday, when a fan asked if he would visit the troops at nearby Fort Sam Houston. X said yes ... and actually kept his word, showing up the next day and playing a little wheelchair basketball with some of the guys (see X score below).

DMX told us, "It made my day as much as it did their day. One told me that I gave him the best early Christmas gift he ever got and that has me still smiling."

DMX will be working on his issues … the marital kind … on VH1’s upcoming “Relationship Rehab” … TMZ has learned.

The troubled rapper and his estranged wife Tashera Simmons have agreed to appear on the upcoming reality show in the hopes of getting their failed marriage back on track, a source close to production tells us.

The Simmons separated in July 2010 after 20 years and four kids together … yet they are still best friends, insists the source – and that’s why they want to give it another shot.

We’re told DMX feels Tashera is “one of the only people [he] truly ever loved and has been down with him through thick and thin.”

The thin? DMX cheated on his wife left and right – and even fathered six children during his extra-marital conquests.

“Relationship Rehab,” a spin-off of “Celebrity Rehab,” is scheduled to begin taping in December. A rep for the rapper had no comment.