Jason Aldean & Brittany Kerr Cheating Scandal

Jason Aldean is engaged to former "American Idol" contestant Brittany Kerr ... TMZ has learned.

We're told the country star sealed the deal during the West Coast leg of his current tour.

No word on how he asked ... but it looks like Jason arranged a private tour of the San Diego Zoo Wednesday -- possibly to pop the question.

As we previously reported ... Aldean and his ex-wife split after make-out pics of Jason and Brittany surfaced in 2012.

Jason Aldean is dating the "American Idol" alum who broke up his marriage -- and we're told they've been hooking up ever since he filed for divorce.

Brittany Kerr -- the A.I. floozie -- was photographed backstage in the wings of Aldean's concert Friday night ... and now we're told it's official ... they're a couple.

It's pretty stunning ... in September, 2012, the two of them were photographed making out at a bar on the Sunset Strip -- it was so obvious they could be seen from the street.

Aldean said at the time it was a one time deal -- a drunken mistake -- and he took a taxi home alone.

Aldean filed for divorce last May.

So now the question ... did they ever really stop seeing each other? No one is saying, but we do know Kerr was in the crowd at his show on January 10th in Austin.

She didn't make it far on "Idol" but she's clearing home base with Aldean.

Right before Jason Aldean filed for divorce ... the country star called the "American Idol" hottie he kissed behind his wife's back and warned her about the media firestorm to come ... TMZ has learned.

Sources connected to Brittany Kerr tell us ... Aldean placed the courtesy phone call himself last week ... and politely warned the singer that he was pulling the trigger on his marriage to his high school sweetheart Jessica Ussery.

Translation -- the media's gonna be all over your ass again ... so, govern yourself accordingly.

We're told Kerr appreciated the heads-up ... considering she was Aldean's kissing partner on the night he cheated on his wife back in Sept.

Since the warning, Brittany's been laying low -- shutting down her social media pages and staying out of the public eye.

It's not clear whether Aldean and Kerr have communicated since … or whether their relationship has a future.

Country superstar Jason Aldean is pulling the trigger on his marriage ... filing for divorce from the woman he cheated on at a Hollywood bar just a few months ago.

Aldean filed papers in Tennessee on April 26 -- moving to end his 11 year marriage to high school sweetheart Jessica Ussery ... the mother of his 2 children. In the docs, Aldean blames the split on "irreconcilable differences."

FYI -- the 36-year-old singer filed the divorce papers on the same day he announced he and his wife had separated. At the time, Aldean's rep had said the couple was "having problems," but made no mention of the divorce,

The problems began for Aldean when he was pictured kissing Season 11 "American Idol" contestant Brittany Kerr on the Sunset Strip in September while he was in L.A. for a concert.

Aldean and Ussery initially tried to patch things up -- and they even walked a red carpet side-by-side back in November ... but clearly, that didn't work out.

Jason Aldean and his wife have separated ... after the country superstar was pictured kissing another woman on the Sunset Strip back in September ... sources connected to the couple tell TMZ.

We're told Aldean and his high-school sweetheart Jessica Ussery have been struggling ever since the "Dirt Road Anthem" singer put the moves on Season 11 "A.I." contender Brittany Kerr in front of a bunch of people at a Hollywood bar.

Aldean and Ussery initially tried to move past the incident together -- and they even walked a red carpet side-by-side back in November.

But now, Aldean's rep says the couple is "having problems" ... and sources tell us they've decided to take some time apart. The split was first reported by Us Weekly.

Aldean and Ussery have been married since 2001 and have 2 kids together.

A month after his "drunken mistake" with former "American Idol" contestant Brittany Kerr, Jason Aldean walked the red carpet at last night's Country Music Association Awards with his wife Jessica.

As TMZ first reported, Aldean made out with Kerr at a bar on the Sunset Strip ... despite having a wedding ring on his finger ... because, you know, he's married.

Both parties apologized for the incident and Kerr was forced to shut down her Facebook page due to the negative reaction.

Aldean was nominated for three awards last night ... but went home empty-handed.

Brittany Kerr has been called a lot of things since she was spotted getting hot and heavy with country star Jason Aldean -- most of which we can't repeat -- but now she has a chance to cash in on that infamy ... as a reality TV star.

TMZ has learned the former "American Idol" contestant has received an offer from Wag TV -- the company behind shows like "How Do They Do It?" and "Ancient X Files" -- to star in her very own show.

We're told Wag sent an offer letter to Brittany, touting their relationships with TLC and A&E, in an effort to lure her into doing a show with them.

We're told the basic premise would be to follow Brittany's efforts to break into the music biz.

Don't hold your breath though -- our sources say Brittany will likely turn down the proposition.

First time for everything.

Brittany Kerr went back into the danger zone Tuesday night ... the center of the Hollywood bar scene ... only this time, the former "American Idol" contestant was spotted with a man who WASN'T wearing a wedding ring.

Brittany Kerr has issued an apology for getting up close and personal with married country singer Jason Aldean ... chalking the whole thing up to a "lapse in judgment."

The former "American Idol" contestant says, "The actions I portrayed recently were not a representation of my true character, but a lapse in judgment on my part."

She adds, "I would like to sincerely apologize to everyone that has been affected by this, including my friends & family."

We broke the story ... Aldean put the moves on Kerr on the patio of a crowded bar on the Sunset Strip last week. Jason later issued an apology ... saying the whole thing was a drunken mistake.

Here's the question/inconsistency. Brittany told friends after we first posted the pics that she didn't know Jason was married. So, if she did know ... why does she now say she had a "lapse in judgment?" Just asking.

Jason Aldean wasn't lying ... the married country star WAS a drunken mess on that night he macked on "American Idol" contestant Brittany Kerr ... and TMZ has the video that proves it.

We shot the footage last week ... showing Aldean and some of his buddies stumbling out of "The Den" bar and grill on the Sunset Strip and into a waiting taxi.

At the time, we had no idea the guy had been making out with the "Idol" singer ... we just knew he was hammered ... so, nothing special.

FYI -- you can plainly see Aldean's wedding ring in the video ... so Kerr's excuse that she didn't know he was married is dubious.

Former "American Idol" contestant Brittany Kerr has shut down her Twitter page ... after a gang of angry Jason Aldean fans BLASTED the singer online -- calling her everything from a "skank" to a "homewrecking whore."

The cyber-hate came flooding in after TMZ posted the pics of Aldean -- a huge country singer who happens to be MARRIED -- putting the moves on Kerr at a crowded bar on the Sunset Strip.

Sources connected to Kerr tell us ... she had NO IDEA Aldean was married ... and if she would have known, she would have shut the whole thing down from the start.

Even though Kerr didn't go home with Aldean, people attacked her online ... writing terrible things on her Facebook page including:

"Disgusting homewrecking tramp!"

"what is wrong with you taking advantage of a married man while he was drinking."

For the record, people have ripped Aldean on his Facebook page too. He has since apologized, chalking the whole thing up to a bad drunken decision.

Country music superstar Jason Aldean says his very open public display of affection with a former "American Idol" contestant -- who is NOT his wife -- was a huge, drunken mistake.

Jason released a statement today, apologizing for his indiscretion, after TMZ posted pictures early this morning of the country singer and "A.I." castoff Brittany Kerr getting up close and personal -- hugging, touching, and flirting at a very popular, crowded bar on the Sunset Strip (above).

Jason -- who has been married since 2001 -- says, "The truth is that I screwed up. I had too much to drink, let the party get out of hand and acted inappropriately at a bar."

He says, "I ultimately ended up embarrassing my family and myself." And then adds, "I left alone and that's the end of the story."

Country music superstar Jason Aldean got up close and personal with a former "A.I" contestant ... right in the open at a very public bar on the Sunset Strip. There's just one problem ... he's married to another woman.

TMZ obtained photos of Jason and Season 11 "A.I" contender Brittany Kerr taken on the crowded bar patio area at The Den on Wednesday night -- frequented by locals and tourists always on the hunt for celebrities.

In the photos Aldean and Kerr get very flirty ... hugging, touching each other and at one point it appears Aldean goes in for a kiss.

Aldean --- who performed this weekend in So Cal -- eventually left the bar in a cab without Brittany.

Here's the rub, Aldean is married to his high school sweetheart, Jessica Ussery, who he tied the knot with back in 2001 and they have 2 kids together.