The shoe was on the other foot in Israel Friday -- Madonna performed a cover of Lady Gaga's hit song "Born This Way" ... the same song Madonna called a rip-off of her earlier work ... but it's unlikely this was an homage to L.G.

Madonna was rehearsing for a concert in Tel Aviv -- singing her own song "Express Yourself" -- then seamlessly transitioned into Lady Gaga's "Born This Way."

Madonna famously criticized "Born This Way" when it was released last year, calling the song a "wonderful redo" of "Express Yourself." Madonna then called it "reductive."

Gaga called Madonna's comments "retarded."

So we gotta ask ...

Madonna and Adam "MCA" Yauch toured together all the way back in the 1980s ... and she calls the rapper a one of a kind performer and an inspiration to her career.

The queen of pop told the AP she felt the Beastie Boys were "integral to the musical revolution that was happening to me at the time." She called his death sad and asked God to bless his family.

The Beastie Boys opened for Madonna during her 1985 Virgin Tour.

Yauch died on Friday after a long battle with cancer, just one month after being inducted into the Rock and Roll Hall of Fame.

He was 47.

Seems Deadmau5 is experiencing a little post-feud remorse ... admitting things didn't go exactly as planned in his cyber-feud with Madonna.

The super DJ was at Pearson International Airport in Canada yesterday ... when he was asked about the Madonna thing ... and he replied, "How is it?! It's terrible."

As we previously reported, Deadmau5 had accused the singer of promoting drug use at a recent electronic music festival ... but Madge fired back, claiming he totally misinterpreted her comments ... and scolded him for not addressing his gripe privately.

Now, it's obvious Deadmau5 just wants the controversy to go away ... saying, "It's just a little trite ... everyone will forget about it."

 

Piers Morgan wants Madonna to "get down on bended knee" and apologize to him ... on TMZ -- all because of a mystery feud that blew up on the Internet this week.

You'll recall ... Piers publicly banned Madonna from his CNN show on Twitter Tuesday, writing, "Welcome to Twitter. You're still banned from my show. Love Piers X."

Madonna's manager Guy Oseary thumbed his nose in response, tweeting back Madonna had already been invited to Piers' UK show -- so Piers extended the ban worldwide.

Piers refused to elaborate on what's really behind the feud -- on his way out of an L.A. supermarket today -- telling us, "It's a private spat." (Piers also doesn't return his shopping cart to the cart corral in the parking lot ... but that's another issue.)

Piers added, "Madonna can come on [my] show, but she has to get on bended knee and apologize to me ... on TMZ."

But he probably won't get his wish -- because a source close to Madonna's management tells TMZ, "Piers is delusional for feuding with Madonna. He isn't even on Madonna's radar. The UK invitation speaks for itself."

Piers Morgan has banned Madonna from his show but the reason is a mystery.

Piers tweeted Tuesday night, "Welcome to Twitter. You're still banned from my show. Love Piers X."

After receiving that tweet, Madonna's manager, Guy Oseary, tweeted back, "Really?" and attached a letter from Piers' producer inviting Madonna to be a guest on his UK chat show. 

Piers then tweeted back, "Madonna has only been banned from my CNN show, not my UK show, which sent that invite. But I'm now banning her from that too."

As for why the bad blood, sources close to Madonna tell TMZ ... Madonna has no idea why Piers is mad at her, adding, "She doesn't even know who he is."

Piers said in January, 2011 he banned Madonna from his show for life because she's been "an irritant in my life for 20 years." The invite, therefore, on Piers' UK show, is baffling.

The song in the middle of the Madonna ecstasy controversy isn't about drugs ... it's about a girl named "Molly" ... this according to the guy who wrote the lyrics.

You'll recall -- Madonna appeared at the Ultra Music Festival in Miami this weekend ... and asked the crowd, "How many people in this crowd have seen Molly?" In case you didn't know ... "Molly" is a slang term for MDMA, the key ingredient in ecstasy.

DeadMau5 slammed Madonna for encouraging drug use -- but Madonna responded today, insisting she was simply referring to a friend's song called "Have You Seen Molly?"

Now, this "friend" -- a DJ named Cedric Gervais (left) -- is coming to Madonna's defense, insisting his song is NOT about drugs ... it's about a girl named Molly who, according to the lyrics, "makes me want to dance." See below for the yet-to-be-released song's "teaser" video that was definitely not inspired by party drugs.



This just in -- Britney Spears' song “If U Seek Amy” is totally about her lost friend Amy.

Madonna says DeadMau5 is DeadWrong ... claiming she was NOT promoting drug use at a concert in Florida ... despite allegations she used her stage time to glamorize the drug ecstasy.

Deadmau5 -- one of the most famous DJs in the world -- had attacked Madonna​ as a "f**king idiot" for asking the crowd at the Ultra Music Festival if anyone has "seen Molly" -- Molly is a slang term for the active ingredient in ecstasy (video below ... warning: it contains explicit language).



Now, Madge is lashing back ... with a pair of mouse ears.

The Material Girl posted a photo of herself in Mickey Mouse gear ... with the caption, "From one mouse to another I dont support drug use and i never have. I was referring to the song called "Have You Seen Molly" written by my friend Cedric Gervais who I almost worked with on my album."

Deadmau5 saw the tweet and replied ... saying, "Fair enough, I was just voicing my concerns as I usually do. +1 respect for clearing it up personally ... regardless, just be a little more aware of what you should represent at EDM events, and I'll watch my mouth."

Madge replied ... "Communication is always best. You should have called me first, we could have cleared it up 'privately.' ;) See you on the road."

Hatchet ... buried?

Madonna is under attack by one of the most famous DJs in the world ... who's PISSED at the Material Girl for glamorizing the use of ecstasy during a recent concert.

DJ Deadmau5 was clearly watching when Madge took the stage at the Ultra Music Festival in Miami this weekend and shouted to the crowd, "How many people in this crowd have seen molly?" (check out video below at :45 mark)

FYI -- "Molly" is a slang term for MDMA, one of the key ingredients in ecstasy ... a drug that's hugely popular with people in the electronic dance music community.

While the crowd CHEERED at Madge's comment ... Deadmau5 went to his Facebook page and ripped the singer a new one.

"Very classy there madonna. 'HUR DUR HAS ANYONE SEEN MOLLY???' such a great message for the young music lovers at ultra."

He added, "Quite the f'n philanthropist. but hey, at least yer HIP AND TRENDY! f*cking cant smack my head hard enough right now."

So far, no response from Madonna. Warning: video contains explicit language.

 
Joe Francis has had a major change of heart about Madonna ... because 4 months ago ... he PROMISED he wouldn't sue if she used the name "Girls Gone Wild" on her album ... and TMZ has the footage to prove it.

Back in November, we asked Francis about the then-rumor that Madge titled one of her songs, "Girls Gone Wild" ... and Francis happily replied, "I'm excited about that!"

We asked if he was cool with the situation, legally ... to which he explained, "I'm REALLY cool with that actually ... I'm not going to sue you Madonna ... I love you, I love Madonna."

Fast forward to last night ... when Joe once again made it clear he wasn't going to back down from his new demand that Madge PAY HIM for using the name ... because he owns the rights to everything GGW-related, including "Girl Gone Wild."


He added, "We've spent almost a billion dollars building this brand ... and she's not going to get a free ride on my brand. But I love the song, I hope it does well ... and I look forward to being a profit participant."

Madonna did NOT change the name of "Girls Gone Wild" because of threats from "Girls Gone Wild" creator Joe Francis -- this according to her manager, Guy Oseary.

Oseary tells TMZ ... he found it laughable that Francis claimed victory after allegedly sending Madonna a cease and desist letter, ordering her not to perform her single "Girls Gone Wild" at the Super Bowl. In fact, Oseary says no one from team Madonna ever received the letter.

As for Madonna changing the name of the song to "Girl Gone Wild," Oseary says they've been tweaking the album for weeks, and decided to make the word "Girl" singular because that's the way Madonna sings it in the song.

Oseary says they have tweaked other titles on the album as well.

And Oseary scoffs at Francis' claim that he owns the title, "Girls Gone Wild," citing a Billboard story that claims there are 50 records called "Girls Gone Wild," including songs by Ludacris, Jagged Edge, T Mills, Lee Kernaghan, Lil Rick and Jackie Kashian.

And finally, Oseary says Madonna doesn't even know who Joe Francis is ... and claims she's completely unaware he's been making threats.

Take that, Joe Francis.

Joe Francis has scored a victory against the likes of Madonna without ever having to set foot in a courtroom ... because she has changed the title of her new song "Girls Gone Wild" ... as well as its lyrics.

You may recall ... just before the Super Bowl, Joe and his lawyer David Houston fired off a cease and desist letter threatening Madge with legal action if she sang the song during her halftime performance, and also demanding that Madonna make things right on her new album.

Well, apparently Madonna and the record label, Interscope, have seen it Joe's way ... because we've learned they have agreed to change the song title to "GIRL Gone Wild."

We've tracked down the new art for the single ... and they've clearly taken the S out of "Girls" (below).


The battle's been won ... but Joe tells TMZ, the war's not over -- "Clearly her label was trying to avoid legal action surrounding the song ... BUT [the new title] is still infringement as far as the law is concerned, and we have been in touch with Madonna’s people in an effort to resolve this issue."

Joe says he'll pursue new legal action if the Madge squad doesn't make further changes to the title.