Madonna reportedly covers Lady Gaga in rehearsal - See Video

Madonna reportedly performed an interesting mash-up -- a mix of her 1989 song "Express Yourself" and Lady Gaga's 2011 song "Born This Way."

The mash-up, which, according to Billboard was performed by Madonna during rehearsals for her concert in Tel Aviv on May 27, can be seen below. It might confirm to audiences what Madonna herself addressed in a previous interview with Newsweek, that the two songs were very similar.

"Of course I heard it," said about "Born This Way" in the January interview. "How could I not? I think it was on the radio a few times. I thought, 'This is a wonderful way to redo my song.' I recognized the chord changes, I thought it was ... interesting."

DJ White Shadow, the producer behind Lady Gaga's hit song, wrote on his Twitter page in January after Madonna mad her remarks, "I obviously do no! t hate M adonna, or belittle her talent or achievements, however, if she thinks we stole a song from her she is wrong."

Lady Gaga addressed the accusations herself in an interview with NME in April 2011 saying, "What a completely ridiculous thing to even question me about."

"If you put the songs next to each other, side by side, the only similarities are the chord progression. It's the same one that's been in disco music for the last 50 years," she added. "Just because I'm the first [expletive] artist in 25 years to think of putting it on Top 40 radio, it doesn't mean I'm a plagiarist, it means that I'm [expletive] smart. Sorry."

At the end of the mash-up, Madonna sings a hook from another one of her tracks called "She's Not Me" of her 2008 album Hard Candy.

Madonna released her 12th studio album, "MDNA," in March. The record contains the single "Give Me All Your Luvin'" which features M.I.A. and Nicki Minaj, as well as "Girl Gone Wild."

Madonna's MDNA world tour kicks off in Tel Aviv on May 31. Check out the tour dates here.

Madonna is not clearly seen in the video and no one identifies the singer by name. Watch the video of the mash-up below.

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