Madonna Mashes 'Born This Way' With 'Express Yourself'

Madonna's U.K. Chart 'Celebration'

Singer Madonna performs on stage at Vicente Calderon Stadium on July 23, 2009 in Madrid, Spain.

In a leaked video from Madonna's May 27 tour rehearsal in Tel Aviv, Israel, the "Express Yourself" singer mashed up her classic hit with a cover of Lady Gaga's "Born This Way." Watch below as she transitions seamlessly between the two similar tracks.

Madge has previously commented on Gaga's song, which is often compared to the 1989 smash "Express Yourself," in several interviews. After telling Newsweek that it was a "wonderful way to redo" her own song and that she "recognized the chord changes," she told ABC's "20/20" that "Born This Way" "felt reductive."

"I certainly think [Gaga] references me a lot in her work," Madonna said in the ABC interview. "And sometimes I think it's amusing and flattering and well-done. When I heard ['Born This Way'] on the radio … I said, 'that sounds very familiar."

About a minute into the shaky video above, Madonna's performance of "Express Yourself" becomes a cover of "Born This Way," as she rehearses for her MDNA world tour, which kicks off May 31 in Tel Aviv and wraps at the end of December.

Lady Gaga's "Born This Way" topped the Billboard Hot 100 for six weeks last year and has sold 3.7 million downloads, according to Nielsen SoundScan.

Madonna's "Express Yourself" peaked at No. 2 on the Hot 100 in 1989. Released long before the age of digital downloading, of course, the song has sold 212,000 downloads since SoundScan began tracking download sales in 2003.